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[ci skip]

docs/api.md

@@ -8,7 +8,7 @@ Further documentation is provided here for some endpoints and features.
 
 ## Authorization
 
-The REST api provides four different forms of authentication.
+The REST api provides five different forms of authentication.
 
 1.  Basic authentication
 
@@ -52,6 +52,14 @@ The REST api provides four different forms of authentication.
     [configuration](configuration.md#PAPERLESS_ENABLE_HTTP_REMOTE_USER_API)),
     you can authenticate against the API using Remote User auth.
 
+5.  Headless OIDC via [`django-allauth`](https://codeberg.org/allauth/django-allauth)
+
+    `django-allauth` exposes API endpoints under `api/auth/` which enable tools
+    like third-party apps to authenticate with social accounts that are
+    configured. See
+    [here](advanced_usage.md#openid-connect-and-social-authentication) for more
+    information on social accounts.
+
 ## Searching for documents
 
 Full text searching is available on the `/api/documents/` endpoint. Two

docs/configuration.md

@@ -659,7 +659,7 @@ system. See the corresponding
 
 : Sync groups from the third party authentication system (e.g. OIDC) to Paperless-ngx. When enabled, users will be added or removed from groups based on their group membership in the third party authentication system. Groups must already exist in Paperless-ngx and have the same name as in the third party authentication system. Groups are updated upon logging in via the third party authentication system, see the corresponding [django-allauth documentation](https://docs.allauth.org/en/dev/socialaccount/signals.html).
 
-: In order to pass groups from the authentication system you will need to update your [PAPERLESS_SOCIALACCOUNT_PROVIDERS](#PAPERLESS_SOCIALACCOUNT_PROVIDERS) setting by adding a top-level "SCOPES" setting which includes "groups", e.g.:
+: In order to pass groups from the authentication system you will need to update your [PAPERLESS_SOCIALACCOUNT_PROVIDERS](#PAPERLESS_SOCIALACCOUNT_PROVIDERS) setting by adding a top-level "SCOPES" setting which includes "groups", or the custom groups claim configured in [`PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM`](#PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM) e.g.:
 
     ```json
     {"openid_connect":{"SCOPE": ["openid","profile","email","groups"]...
@@ -667,6 +667,12 @@ system. See the corresponding
 
     Defaults to False
 
+#### [`PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM=<str>`](#PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM) {#PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM}
+
+: Allows you to define a custom groups claim. See [PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS](#PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS) which is required for this setting to take effect.
+
+    Defaults to "groups"
+
 #### [`PAPERLESS_SOCIAL_ACCOUNT_DEFAULT_GROUPS=<comma-separated-list>`](#PAPERLESS_SOCIAL_ACCOUNT_DEFAULT_GROUPS) {#PAPERLESS_SOCIAL_ACCOUNT_DEFAULT_GROUPS}
 
 : A list of group names that users who signup via social accounts will be added to upon signup. Groups listed here must already exist.
@@ -1146,8 +1152,9 @@ via the consumption directory, you can disable the consumer to save resources.
 
 #### [`PAPERLESS_CONSUMER_DELETE_DUPLICATES=<bool>`](#PAPERLESS_CONSUMER_DELETE_DUPLICATES) {#PAPERLESS_CONSUMER_DELETE_DUPLICATES}
 
-: When the consumer detects a duplicate document, it will not touch
-the original document. This default behavior can be changed here.
+: As of version 3.0 Paperless-ngx allows duplicate documents to be consumed by default, _except_ when
+this setting is enabled. When enabled, Paperless will check if a document with the same hash already
+exists in the system and delete the duplicate file from the consumption directory without consuming it.
 
     Defaults to false.
 

src-ui/src/app/components/admin/settings/settings.component.html

@@ -103,22 +103,6 @@
             </div>
 
             <div class="row mb-3">
-              <div class="col-md-3 col-form-label pt-0">
-                <span i18n>Items per page</span>
-              </div>
-              <div class="col">
-
-                <select class="form-select" formControlName="documentListItemPerPage">
-                  <option [ngValue]="10">10</option>
-                  <option [ngValue]="25">25</option>
-                  <option [ngValue]="50">50</option>
-                  <option [ngValue]="100">100</option>
-                </select>
-
-              </div>
-            </div>
-
-            <div class="row">
               <div class="col-md-3 col-form-label pt-0">
                 <span i18n>Sidebar</span>
               </div>
@@ -153,8 +137,28 @@
                 </button>
               </div>
             </div>
+          </div>
+          <div class="col-xl-6 ps-xl-5">
+            <h5 class="mt-3 mt-md-0" i18n>Global search</h5>
+            <div class="row">
+              <div class="col">
+                <pngx-input-check i18n-title title="Do not include advanced search results" formControlName="searchDbOnly"></pngx-input-check>
+              </div>
+            </div>
 
-            <h5 class="mt-3" id="update-checking" i18n>Update checking</h5>
+            <div class="row mb-3">
+              <div class="col-md-3 col-form-label pt-0">
+                <span i18n>Full search links to</span>
+              </div>
+              <div class="col mb-3">
+                <select class="form-select" formControlName="searchLink">
+                  <option [ngValue]="GlobalSearchType.TITLE_CONTENT" i18n>Title and content search</option>
+                  <option [ngValue]="GlobalSearchType.ADVANCED" i18n>Advanced search</option>
+                </select>
+              </div>
+            </div>
+
+            <h5 class="mt-3 mt-md-0" id="update-checking" i18n>Update checking</h5>
             <div class="row mb-3">
               <div class="col d-flex flex-row align-items-start">
                 <pngx-input-check i18n-title title="Enable update checking" formControlName="updateCheckingEnabled"></pngx-input-check>
@@ -179,11 +183,33 @@
                 <pngx-input-check i18n-title title="Show document counts in sidebar saved views" formControlName="sidebarViewsShowCount"></pngx-input-check>
               </div>
             </div>
-
           </div>
-          <div class="col-xl-6 ps-xl-5">
-            <h5 class="mt-3 mt-md-0" i18n>Document editing</h5>
+        </div>
 
+      </ng-template>
+    </li>
+
+    <li [ngbNavItem]="SettingsNavIDs.Documents">
+      <a ngbNavLink i18n>Documents</a>
+      <ng-template ngbNavContent>
+        <div class="row">
+          <div class="col-xl-6 pe-xl-5">
+            <h5 i18n>Documents</h5>
+            <div class="row mb-3">
+              <div class="col-md-3 col-form-label pt-0">
+                <span i18n>Items per page</span>
+              </div>
+              <div class="col">
+                <select class="form-select" formControlName="documentListItemPerPage">
+                  <option [ngValue]="10">10</option>
+                  <option [ngValue]="25">25</option>
+                  <option [ngValue]="50">50</option>
+                  <option [ngValue]="100">100</option>
+                </select>
+              </div>
+            </div>
+
+            <h5 class="mt-3" i18n>Document editing</h5>
             <div class="row">
               <div class="col">
                 <pngx-input-check i18n-title title="Use PDF viewer provided by the browser" i18n-hint hint="This is usually faster for displaying large PDF documents, but it might not work on some browsers." formControlName="useNativePdfViewer"></pngx-input-check>
@@ -209,31 +235,31 @@
               </div>
             </div>
 
-            <div class="row mb-3">
+            <div class="row">
               <div class="col">
                 <pngx-input-check i18n-title title="Show document thumbnail during loading" formControlName="documentEditingOverlayThumbnail"></pngx-input-check>
               </div>
             </div>
 
-            <h5 class="mt-3" i18n>Global search</h5>
-            <div class="row">
-              <div class="col">
-                <pngx-input-check i18n-title title="Do not include advanced search results" formControlName="searchDbOnly"></pngx-input-check>
-              </div>
-            </div>
-
             <div class="row mb-3">
-              <div class="col-md-3 col-form-label pt-0">
-                <span i18n>Full search links to</span>
-              </div>
-              <div class="col mb-3">
-                <select class="form-select" formControlName="searchLink">
-                  <option [ngValue]="GlobalSearchType.TITLE_CONTENT" i18n>Title and content search</option>
-                  <option [ngValue]="GlobalSearchType.ADVANCED" i18n>Advanced search</option>
-                </select>
+              <div class="col">
+                <p class="mb-2" i18n>Built-in fields to show:</p>
+                @for (option of documentDetailFieldOptions; track option.id) {
+                  <div class="form-check ms-3">
+                    <input class="form-check-input" type="checkbox"
+                      [id]="'documentDetailField-' + option.id"
+                      [checked]="isDocumentDetailFieldShown(option.id)"
+                      (change)="toggleDocumentDetailField(option.id, $event.target.checked)" />
+                    <label class="form-check-label" [for]="'documentDetailField-' + option.id">
+                      {{ option.label }}
+                    </label>
+                  </div>
+                }
+                <p class="small text-muted mt-1" i18n>Uncheck fields to hide them on the document details page.</p>
               </div>
             </div>
-
+          </div>
+          <div class="col-xl-6 ps-xl-5">
             <h5 class="mt-3" i18n>Bulk editing</h5>
             <div class="row mb-3">
               <div class="col">
@@ -248,10 +274,8 @@
                 <pngx-input-check i18n-title title="Enable notes" formControlName="notesEnabled"></pngx-input-check>
               </div>
             </div>
-
           </div>
         </div>
-
       </ng-template>
     </li>
 

src-ui/src/app/components/admin/settings/settings.component.spec.ts

@@ -201,9 +201,9 @@ describe('SettingsComponent', () => {
     const navigateSpy = jest.spyOn(router, 'navigate')
     const tabButtons = fixture.debugElement.queryAll(By.directive(NgbNavLink))
     tabButtons[1].nativeElement.dispatchEvent(new MouseEvent('click'))
-    expect(navigateSpy).toHaveBeenCalledWith(['settings', 'permissions'])
+    expect(navigateSpy).toHaveBeenCalledWith(['settings', 'documents'])
     tabButtons[2].nativeElement.dispatchEvent(new MouseEvent('click'))
-    expect(navigateSpy).toHaveBeenCalledWith(['settings', 'notifications'])
+    expect(navigateSpy).toHaveBeenCalledWith(['settings', 'permissions'])
 
     const initSpy = jest.spyOn(component, 'initialize')
     component.isDirty = true // mock dirty
@@ -213,8 +213,8 @@ describe('SettingsComponent', () => {
     expect(initSpy).not.toHaveBeenCalled()
 
     navigateSpy.mockResolvedValueOnce(true) // nav accepted even though dirty
-    tabButtons[1].nativeElement.dispatchEvent(new MouseEvent('click'))
-    expect(navigateSpy).toHaveBeenCalledWith(['settings', 'notifications'])
+    tabButtons[2].nativeElement.dispatchEvent(new MouseEvent('click'))
+    expect(navigateSpy).toHaveBeenCalledWith(['settings', 'permissions'])
     expect(initSpy).toHaveBeenCalled()
   })
 
@@ -226,7 +226,7 @@ describe('SettingsComponent', () => {
     activatedRoute.snapshot.fragment = '#notifications'
     const scrollSpy = jest.spyOn(viewportScroller, 'scrollToAnchor')
     component.ngOnInit()
-    expect(component.activeNavID).toEqual(3) // Notifications
+    expect(component.activeNavID).toEqual(4) // Notifications
     component.ngAfterViewInit()
     expect(scrollSpy).toHaveBeenCalledWith('#notifications')
   })
@@ -251,7 +251,7 @@ describe('SettingsComponent', () => {
     expect(toastErrorSpy).toHaveBeenCalled()
     expect(storeSpy).toHaveBeenCalled()
     expect(appearanceSettingsSpy).not.toHaveBeenCalled()
-    expect(setSpy).toHaveBeenCalledTimes(30)
+    expect(setSpy).toHaveBeenCalledTimes(31)
 
     // succeed
     storeSpy.mockReturnValueOnce(of(true))
@@ -366,4 +366,22 @@ describe('SettingsComponent', () => {
     settingsService.settingsSaved.emit(true)
     expect(maybeRefreshSpy).toHaveBeenCalled()
   })
+
+  it('should support toggling document detail fields', () => {
+    completeSetup()
+    const field = 'storage_path'
+    expect(
+      component.settingsForm.get('documentDetailsHiddenFields').value.length
+    ).toEqual(0)
+    component.toggleDocumentDetailField(field, false)
+    expect(
+      component.settingsForm.get('documentDetailsHiddenFields').value.length
+    ).toEqual(1)
+    expect(component.isDocumentDetailFieldShown(field)).toBeFalsy()
+    component.toggleDocumentDetailField(field, true)
+    expect(
+      component.settingsForm.get('documentDetailsHiddenFields').value.length
+    ).toEqual(0)
+    expect(component.isDocumentDetailFieldShown(field)).toBeTruthy()
+  })
 })

src-ui/src/app/components/admin/settings/settings.component.ts

@@ -70,9 +70,9 @@ import { ComponentWithPermissions } from '../../with-permissions/with-permission
 
 enum SettingsNavIDs {
   General = 1,
-  Permissions = 2,
-  Notifications = 3,
-  SavedViews = 4,
+  Documents = 2,
+  Permissions = 3,
+  Notifications = 4,
 }
 
 const systemLanguage = { code: '', name: $localize`Use system language` }
@@ -81,6 +81,25 @@ const systemDateFormat = {
   name: $localize`Use date format of display language`,
 }
 
+export enum DocumentDetailFieldID {
+  ArchiveSerialNumber = 'archive_serial_number',
+  Correspondent = 'correspondent',
+  DocumentType = 'document_type',
+  StoragePath = 'storage_path',
+  Tags = 'tags',
+}
+
+const documentDetailFieldOptions = [
+  {
+    id: DocumentDetailFieldID.ArchiveSerialNumber,
+    label: $localize`Archive serial number`,
+  },
+  { id: DocumentDetailFieldID.Correspondent, label: $localize`Correspondent` },
+  { id: DocumentDetailFieldID.DocumentType, label: $localize`Document type` },
+  { id: DocumentDetailFieldID.StoragePath, label: $localize`Storage path` },
+  { id: DocumentDetailFieldID.Tags, label: $localize`Tags` },
+]
+
 @Component({
   selector: 'pngx-settings',
   templateUrl: './settings.component.html',
@@ -146,6 +165,7 @@ export class SettingsComponent
     pdfViewerDefaultZoom: new FormControl(null),
     documentEditingRemoveInboxTags: new FormControl(null),
     documentEditingOverlayThumbnail: new FormControl(null),
+    documentDetailsHiddenFields: new FormControl([]),
     searchDbOnly: new FormControl(null),
     searchLink: new FormControl(null),
 
@@ -176,6 +196,8 @@ export class SettingsComponent
 
   public readonly ZoomSetting = ZoomSetting
 
+  public readonly documentDetailFieldOptions = documentDetailFieldOptions
+
   get systemStatusHasErrors(): boolean {
     return (
       this.systemStatus.database.status === SystemStatusItemStatus.ERROR ||
@@ -336,6 +358,9 @@ export class SettingsComponent
       documentEditingOverlayThumbnail: this.settings.get(
         SETTINGS_KEYS.DOCUMENT_EDITING_OVERLAY_THUMBNAIL
       ),
+      documentDetailsHiddenFields: this.settings.get(
+        SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS
+      ),
       searchDbOnly: this.settings.get(SETTINGS_KEYS.SEARCH_DB_ONLY),
       searchLink: this.settings.get(SETTINGS_KEYS.SEARCH_FULL_TYPE),
     }
@@ -526,6 +551,10 @@ export class SettingsComponent
       SETTINGS_KEYS.DOCUMENT_EDITING_OVERLAY_THUMBNAIL,
       this.settingsForm.value.documentEditingOverlayThumbnail
     )
+    this.settings.set(
+      SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS,
+      this.settingsForm.value.documentDetailsHiddenFields
+    )
     this.settings.set(
       SETTINGS_KEYS.SEARCH_DB_ONLY,
       this.settingsForm.value.searchDbOnly
@@ -587,6 +616,26 @@ export class SettingsComponent
     this.settingsForm.get('themeColor').patchValue('')
   }
 
+  isDocumentDetailFieldShown(fieldId: string): boolean {
+    const hiddenFields =
+      this.settingsForm.value.documentDetailsHiddenFields || []
+    return !hiddenFields.includes(fieldId)
+  }
+
+  toggleDocumentDetailField(fieldId: string, checked: boolean) {
+    const hiddenFields = new Set(
+      this.settingsForm.value.documentDetailsHiddenFields || []
+    )
+    if (checked) {
+      hiddenFields.delete(fieldId)
+    } else {
+      hiddenFields.add(fieldId)
+    }
+    this.settingsForm
+      .get('documentDetailsHiddenFields')
+      .setValue(Array.from(hiddenFields))
+  }
+
   showSystemStatus() {
     const modal: NgbModalRef = this.modalService.open(
       SystemStatusDialogComponent,

src-ui/src/app/components/admin/tasks/tasks.component.html

@@ -97,6 +97,12 @@
                   <br/><em>(<ng-container i18n>click for full output</ng-container>)</em>
                 }
               </ng-template>
+              @if (task.duplicate_documents?.length > 0) {
+                <div class="small text-warning-emphasis d-flex align-items-center gap-1">
+                  <i-bs class="lh-1" width="1em" height="1em" name="exclamation-triangle"></i-bs>
+                  <span i18n>Duplicate(s) detected</span>
+                </div>
+              }
             </td>
           }
           <td class="d-lg-none">

src-ui/src/app/components/common/dates-dropdown/dates-dropdown.component.html

@@ -164,9 +164,11 @@
     {{ item.name }}
     <span class="ms-auto text-muted small">
       @if (item.dateEnd) {
-        {{ item.date | customDate:'MMM d' }} &ndash; {{ item.dateEnd | customDate:'mediumDate' }}
+        {{ item.date | customDate:'mediumDate' }} &ndash; {{ item.dateEnd | customDate:'mediumDate' }}
+      } @else if (item.dateTilNow) {
+        {{ item.dateTilNow | customDate:'mediumDate' }} &ndash; <ng-container i18n>now</ng-container>
       } @else {
-        {{ item.date | customDate:'mediumDate' }} &ndash; <ng-container i18n>now</ng-container>
+        {{ item.date | customDate:'mediumDate' }}
       }
     </span>
   </div>

src-ui/src/app/components/common/dates-dropdown/dates-dropdown.component.ts

@@ -79,32 +79,34 @@ export class DatesDropdownComponent implements OnInit, OnDestroy {
     {
       id: RelativeDate.WITHIN_1_WEEK,
       name: $localize`Within 1 week`,
-      date: new Date().setDate(new Date().getDate() - 7),
+      dateTilNow: new Date().setDate(new Date().getDate() - 7),
     },
     {
       id: RelativeDate.WITHIN_1_MONTH,
       name: $localize`Within 1 month`,
-      date: new Date().setMonth(new Date().getMonth() - 1),
+      dateTilNow: new Date().setMonth(new Date().getMonth() - 1),
     },
     {
       id: RelativeDate.WITHIN_3_MONTHS,
       name: $localize`Within 3 months`,
-      date: new Date().setMonth(new Date().getMonth() - 3),
+      dateTilNow: new Date().setMonth(new Date().getMonth() - 3),
     },
     {
       id: RelativeDate.WITHIN_1_YEAR,
       name: $localize`Within 1 year`,
-      date: new Date().setFullYear(new Date().getFullYear() - 1),
+      dateTilNow: new Date().setFullYear(new Date().getFullYear() - 1),
     },
     {
       id: RelativeDate.THIS_YEAR,
       name: $localize`This year`,
       date: new Date('1/1/' + new Date().getFullYear()),
+      dateEnd: new Date('12/31/' + new Date().getFullYear()),
     },
     {
       id: RelativeDate.THIS_MONTH,
       name: $localize`This month`,
       date: new Date().setDate(1),
+      dateEnd: new Date(new Date().getFullYear(), new Date().getMonth() + 1, 0),
     },
     {
       id: RelativeDate.TODAY,

src-ui/src/app/components/common/page-header/page-header.component.html

@@ -1,9 +1,18 @@
 <div class="row pt-3 pb-3 pb-md-2 align-items-center">
   <div class="col-md text-truncate">
-    <h3 class="text-truncate" style="line-height: 1.4">
-      {{title}}
+    <h3 class="d-flex align-items-center mb-1" style="line-height: 1.4">
+      <span class="text-truncate">{{title}}</span>
+      @if (id) {
+        <span class="badge bg-primary text-primary-text-contrast ms-3 small fs-normal cursor-pointer" (click)="copyID()">
+          @if (copied) {
+            <i-bs width="1em" height="1em" name="clipboard-check"></i-bs>&nbsp;<ng-container i18n>Copied!</ng-container>
+          } @else {
+            ID: {{id}}
+          }
+        </span>
+      }
       @if (subTitle) {
-        <span class="h6 mb-0 d-block d-md-inline fw-normal ms-md-3 text-truncate" style="line-height: 1.4">{{subTitle}}</span>
+        <span class="h6 mb-0 mt-1 d-block d-md-inline fw-normal ms-md-3 text-truncate" style="line-height: 1.4">{{subTitle}}</span>
       }
       @if (info) {
         <button class="btn btn-sm btn-link text-muted me-auto p-0 p-md-2" title="What's this?" i18n-title type="button" [ngbPopover]="infoPopover" [autoClose]="true">

src-ui/src/app/components/common/page-header/page-header.component.scss

@@ -1,5 +1,10 @@
 h3 {
     min-height: calc(1.325rem + 0.9vw);
+
+    .badge {
+        font-size: 0.65rem;
+        line-height: 1;
+    }
 }
 
 @media (min-width: 1200px) {

src-ui/src/app/components/common/page-header/page-header.component.spec.ts

@@ -1,3 +1,4 @@
+import { Clipboard } from '@angular/cdk/clipboard'
 import { ComponentFixture, TestBed } from '@angular/core/testing'
 import { Title } from '@angular/platform-browser'
 import { environment } from 'src/environments/environment'
@@ -7,6 +8,7 @@ describe('PageHeaderComponent', () => {
   let component: PageHeaderComponent
   let fixture: ComponentFixture<PageHeaderComponent>
   let titleService: Title
+  let clipboard: Clipboard
 
   beforeEach(async () => {
     TestBed.configureTestingModule({
@@ -15,6 +17,7 @@ describe('PageHeaderComponent', () => {
     }).compileComponents()
 
     titleService = TestBed.inject(Title)
+    clipboard = TestBed.inject(Clipboard)
     fixture = TestBed.createComponent(PageHeaderComponent)
     component = fixture.componentInstance
     fixture.detectChanges()
@@ -24,7 +27,8 @@ describe('PageHeaderComponent', () => {
     component.title = 'Foo'
     component.subTitle = 'Bar'
     fixture.detectChanges()
-    expect(fixture.nativeElement.textContent).toContain('Foo Bar')
+    expect(fixture.nativeElement.textContent).toContain('Foo')
+    expect(fixture.nativeElement.textContent).toContain('Bar')
   })
 
   it('should set html title', () => {
@@ -32,4 +36,16 @@ describe('PageHeaderComponent', () => {
     component.title = 'Foo Bar'
     expect(titleSpy).toHaveBeenCalledWith(`Foo Bar - ${environment.appTitle}`)
   })
+
+  it('should copy id to clipboard, reset after 3 seconds', () => {
+    jest.useFakeTimers()
+    component.id = 42 as any
+    jest.spyOn(clipboard, 'copy').mockReturnValue(true)
+    component.copyID()
+    expect(clipboard.copy).toHaveBeenCalledWith('42')
+    expect(component.copied).toBe(true)
+
+    jest.advanceTimersByTime(3000)
+    expect(component.copied).toBe(false)
+  })
 })

src-ui/src/app/components/common/page-header/page-header.component.ts

@@ -1,3 +1,4 @@
+import { Clipboard } from '@angular/cdk/clipboard'
 import { Component, Input, inject } from '@angular/core'
 import { Title } from '@angular/platform-browser'
 import { NgbPopoverModule } from '@ng-bootstrap/ng-bootstrap'
@@ -13,8 +14,11 @@ import { environment } from 'src/environments/environment'
 })
 export class PageHeaderComponent {
   private titleService = inject(Title)
+  private clipboard = inject(Clipboard)
 
-  _title = ''
+  private _title = ''
+  public copied: boolean = false
+  private copyTimeout: any
 
   @Input()
   set title(title: string) {
@@ -26,6 +30,9 @@ export class PageHeaderComponent {
     return this._title
   }
 
+  @Input()
+  id: number
+
   @Input()
   subTitle: string = ''
 
@@ -34,4 +41,12 @@ export class PageHeaderComponent {
 
   @Input()
   infoLink: string
+
+  public copyID() {
+    this.copied = this.clipboard.copy(this.id.toString())
+    clearTimeout(this.copyTimeout)
+    this.copyTimeout = setTimeout(() => {
+      this.copied = false
+    }, 3000)
+  }
 }

src-ui/src/app/components/document-detail/document-detail.component.html

@@ -1,4 +1,4 @@
-<pngx-page-header [(title)]="title">
+<pngx-page-header [(title)]="title" [id]="documentId">
   @if (archiveContentRenderType === ContentRenderType.PDF && !useNativePdfViewer) {
     @if (previewNumPages) {
       <div class="input-group input-group-sm d-none d-md-flex">
@@ -146,16 +146,26 @@
           <ng-template ngbNavContent>
             <div>
               <pngx-input-text #inputTitle i18n-title title="Title" formControlName="title" [horizontal]="true" [suggestion]="suggestions?.title" (keyup)="titleKeyUp($event)" [error]="error?.title"></pngx-input-text>
-              <pngx-input-number i18n-title title="Archive serial number" [error]="error?.archive_serial_number" [horizontal]="true" formControlName='archive_serial_number'></pngx-input-number>
+              @if (!isFieldHidden(DocumentDetailFieldID.ArchiveSerialNumber)) {
+                <pngx-input-number i18n-title title="Archive serial number" [error]="error?.archive_serial_number" [horizontal]="true" formControlName='archive_serial_number'></pngx-input-number>
+              }
               <pngx-input-date i18n-title title="Date created" formControlName="created" [suggestions]="suggestions?.dates" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event)"
               [error]="error?.created"></pngx-input-date>
-              <pngx-input-select [items]="correspondents" i18n-title title="Correspondent" formControlName="correspondent" [allowNull]="true" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.Correspondent)"
-              (createNew)="createCorrespondent($event)" [hideAddButton]="createDisabled(DataType.Correspondent)" [suggestions]="suggestions?.correspondents" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.Correspondent }"></pngx-input-select>
-              <pngx-input-select [items]="documentTypes" i18n-title title="Document type" formControlName="document_type" [allowNull]="true" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.DocumentType)"
-              (createNew)="createDocumentType($event)" [hideAddButton]="createDisabled(DataType.DocumentType)" [suggestions]="suggestions?.document_types" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.DocumentType }"></pngx-input-select>
-              <pngx-input-select [items]="storagePaths" i18n-title title="Storage path" formControlName="storage_path" [allowNull]="true" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.StoragePath)"
-              (createNew)="createStoragePath($event)" [hideAddButton]="createDisabled(DataType.StoragePath)" [suggestions]="suggestions?.storage_paths" i18n-placeholder placeholder="Default" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.StoragePath }"></pngx-input-select>
-              <pngx-input-tags #tagsInput formControlName="tags" [suggestions]="suggestions?.tags" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.Tag)" [hideAddButton]="createDisabled(DataType.Tag)" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.Tag }"></pngx-input-tags>
+              @if (!isFieldHidden(DocumentDetailFieldID.Correspondent)) {
+                <pngx-input-select [items]="correspondents" i18n-title title="Correspondent" formControlName="correspondent" [allowNull]="true" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.Correspondent)"
+                (createNew)="createCorrespondent($event)" [hideAddButton]="createDisabled(DataType.Correspondent)" [suggestions]="suggestions?.correspondents" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.Correspondent }"></pngx-input-select>
+              }
+              @if (!isFieldHidden(DocumentDetailFieldID.DocumentType)) {
+                <pngx-input-select [items]="documentTypes" i18n-title title="Document type" formControlName="document_type" [allowNull]="true" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.DocumentType)"
+                (createNew)="createDocumentType($event)" [hideAddButton]="createDisabled(DataType.DocumentType)" [suggestions]="suggestions?.document_types" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.DocumentType }"></pngx-input-select>
+              }
+              @if (!isFieldHidden(DocumentDetailFieldID.StoragePath)) {
+                <pngx-input-select [items]="storagePaths" i18n-title title="Storage path" formControlName="storage_path" [allowNull]="true" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.StoragePath)"
+                (createNew)="createStoragePath($event)" [hideAddButton]="createDisabled(DataType.StoragePath)" [suggestions]="suggestions?.storage_paths" i18n-placeholder placeholder="Default" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.StoragePath }"></pngx-input-select>
+              }
+              @if (!isFieldHidden(DocumentDetailFieldID.Tags)) {
+                <pngx-input-tags #tagsInput formControlName="tags" [suggestions]="suggestions?.tags" [showFilter]="true" [horizontal]="true" (filterDocuments)="filterDocuments($event, DataType.Tag)" [hideAddButton]="createDisabled(DataType.Tag)" *pngxIfPermissions="{ action: PermissionAction.View, type: PermissionType.Tag }"></pngx-input-tags>
+              }
               @for (fieldInstance of document?.custom_fields; track fieldInstance.field; let i = $index) {
                 <div [formGroup]="customFieldFormFields.controls[i]">
                   @switch (getCustomFieldFromInstance(fieldInstance)?.data_type) {
@@ -370,6 +380,37 @@
             </ng-template>
           </li>
         }
+
+        @if (document?.duplicate_documents?.length) {
+          <li [ngbNavItem]="DocumentDetailNavIDs.Duplicates">
+            <a class="text-nowrap" ngbNavLink i18n>
+              Duplicates
+              <span class="badge text-bg-secondary ms-1">{{ document.duplicate_documents.length }}</span>
+            </a>
+            <ng-template ngbNavContent>
+              <div class="d-flex flex-column gap-2">
+                <div class="fst-italic" i18n>Duplicate documents detected:</div>
+                <div class="list-group">
+                  @for (duplicate of document.duplicate_documents; track duplicate.id) {
+                    <a
+                      class="list-group-item list-group-item-action d-flex justify-content-between align-items-center"
+                      [routerLink]="['/documents', duplicate.id, 'details']"
+                      [class.disabled]="duplicate.deleted_at"
+                    >
+                      <span class="d-flex align-items-center gap-2">
+                        <span>{{ duplicate.title || ('#' + duplicate.id) }}</span>
+                        @if (duplicate.deleted_at) {
+                          <span class="badge text-bg-secondary" i18n>In trash</span>
+                        }
+                      </span>
+                      <span class="text-secondary">#{{ duplicate.id }}</span>
+                    </a>
+                  }
+                </div>
+              </div>
+            </ng-template>
+          </li>
+        }
       </ul>
 
       <div [ngbNavOutlet]="nav" class="mt-3"></div>

src-ui/src/app/components/document-detail/document-detail.component.spec.ts

@@ -48,6 +48,7 @@ import {
 } from 'src/app/data/filter-rule-type'
 import { StoragePath } from 'src/app/data/storage-path'
 import { Tag } from 'src/app/data/tag'
+import { SETTINGS_KEYS } from 'src/app/data/ui-settings'
 import { PermissionsGuard } from 'src/app/guards/permissions.guard'
 import { CustomDatePipe } from 'src/app/pipes/custom-date.pipe'
 import { DocumentTitlePipe } from 'src/app/pipes/document-title.pipe'
@@ -301,16 +302,16 @@ describe('DocumentDetailComponent', () => {
       .spyOn(openDocumentsService, 'openDocument')
       .mockReturnValueOnce(of(true))
     fixture.detectChanges()
-    expect(component.activeNavID).toEqual(5) // DocumentDetailNavIDs.Notes
+    expect(component.activeNavID).toEqual(component.DocumentDetailNavIDs.Notes)
   })
 
   it('should change url on tab switch', () => {
     initNormally()
     const navigateSpy = jest.spyOn(router, 'navigate')
-    component.nav.select(5)
+    component.nav.select(component.DocumentDetailNavIDs.Notes)
     component.nav.navChange.next({
       activeId: 1,
-      nextId: 5,
+      nextId: component.DocumentDetailNavIDs.Notes,
       preventDefault: () => {},
     })
     fixture.detectChanges()
@@ -352,6 +353,18 @@ describe('DocumentDetailComponent', () => {
     expect(component.document).toEqual(doc)
   })
 
+  it('should fall back to details tab when duplicates tab is active but no duplicates', () => {
+    initNormally()
+    component.activeNavID = component.DocumentDetailNavIDs.Duplicates
+    const noDupDoc = { ...doc, duplicate_documents: [] }
+
+    component.updateComponent(noDupDoc)
+
+    expect(component.activeNavID).toEqual(
+      component.DocumentDetailNavIDs.Details
+    )
+  })
+
   it('should load already-opened document via param', () => {
     initNormally()
     jest.spyOn(documentService, 'get').mockReturnValueOnce(of(doc))
@@ -367,6 +380,38 @@ describe('DocumentDetailComponent', () => {
     expect(component.document).toEqual(doc)
   })
 
+  it('should update cached open document duplicates when reloading an open doc', () => {
+    const openDoc = { ...doc, duplicate_documents: [{ id: 1, title: 'Old' }] }
+    const updatedDuplicates = [
+      { id: 2, title: 'Newer duplicate', deleted_at: null },
+    ]
+    jest
+      .spyOn(activatedRoute, 'paramMap', 'get')
+      .mockReturnValue(of(convertToParamMap({ id: 3, section: 'details' })))
+    jest.spyOn(documentService, 'get').mockReturnValue(
+      of({
+        ...doc,
+        modified: new Date('2024-01-02T00:00:00Z'),
+        duplicate_documents: updatedDuplicates,
+      })
+    )
+    jest.spyOn(openDocumentsService, 'getOpenDocument').mockReturnValue(openDoc)
+    const saveSpy = jest.spyOn(openDocumentsService, 'save')
+    jest.spyOn(openDocumentsService, 'openDocument').mockReturnValue(of(true))
+    jest.spyOn(customFieldsService, 'listAll').mockReturnValue(
+      of({
+        count: customFields.length,
+        all: customFields.map((f) => f.id),
+        results: customFields,
+      })
+    )
+
+    fixture.detectChanges()
+
+    expect(openDoc.duplicate_documents).toEqual(updatedDuplicates)
+    expect(saveSpy).toHaveBeenCalled()
+  })
+
   it('should disable form if user cannot edit', () => {
     currentUserHasObjectPermissions = false
     initNormally()
@@ -971,7 +1016,7 @@ describe('DocumentDetailComponent', () => {
   it('should display built-in pdf viewer if not disabled', () => {
     initNormally()
     component.document.archived_file_name = 'file.pdf'
-    jest.spyOn(settingsService, 'get').mockReturnValue(false)
+    settingsService.set(SETTINGS_KEYS.USE_NATIVE_PDF_VIEWER, false)
     expect(component.useNativePdfViewer).toBeFalsy()
     fixture.detectChanges()
     expect(fixture.debugElement.query(By.css('pdf-viewer'))).not.toBeNull()
@@ -980,7 +1025,7 @@ describe('DocumentDetailComponent', () => {
   it('should display native pdf viewer if enabled', () => {
     initNormally()
     component.document.archived_file_name = 'file.pdf'
-    jest.spyOn(settingsService, 'get').mockReturnValue(true)
+    settingsService.set(SETTINGS_KEYS.USE_NATIVE_PDF_VIEWER, true)
     expect(component.useNativePdfViewer).toBeTruthy()
     fixture.detectChanges()
     expect(fixture.debugElement.query(By.css('object'))).not.toBeNull()

src-ui/src/app/components/document-detail/document-detail.component.ts

@@ -8,7 +8,7 @@ import {
   FormsModule,
   ReactiveFormsModule,
 } from '@angular/forms'
-import { ActivatedRoute, Router } from '@angular/router'
+import { ActivatedRoute, Router, RouterModule } from '@angular/router'
 import {
   NgbDateStruct,
   NgbDropdownModule,
@@ -84,6 +84,7 @@ import { ToastService } from 'src/app/services/toast.service'
 import { getFilenameFromContentDisposition } from 'src/app/utils/http'
 import { ISODateAdapter } from 'src/app/utils/ngb-iso-date-adapter'
 import * as UTIF from 'utif'
+import { DocumentDetailFieldID } from '../admin/settings/settings.component'
 import { ConfirmDialogComponent } from '../common/confirm-dialog/confirm-dialog.component'
 import { PasswordRemovalConfirmDialogComponent } from '../common/confirm-dialog/password-removal-confirm-dialog/password-removal-confirm-dialog.component'
 import { CustomFieldsDropdownComponent } from '../common/custom-fields-dropdown/custom-fields-dropdown.component'
@@ -124,6 +125,7 @@ enum DocumentDetailNavIDs {
   Notes = 5,
   Permissions = 6,
   History = 7,
+  Duplicates = 8,
 }
 
 enum ContentRenderType {
@@ -181,6 +183,7 @@ export enum ZoomSetting {
     NgxBootstrapIconsModule,
     PdfViewerModule,
     TextAreaComponent,
+    RouterModule,
   ],
 })
 export class DocumentDetailComponent
@@ -279,6 +282,8 @@ export class DocumentDetailComponent
 
   public readonly DataType = DataType
 
+  public readonly DocumentDetailFieldID = DocumentDetailFieldID
+
   @ViewChild('nav') nav: NgbNav
   @ViewChild('pdfPreview') set pdfPreview(element) {
     // this gets called when component added or removed from DOM
@@ -325,6 +330,12 @@ export class DocumentDetailComponent
     return this.settings.get(SETTINGS_KEYS.DOCUMENT_EDITING_OVERLAY_THUMBNAIL)
   }
 
+  isFieldHidden(fieldId: DocumentDetailFieldID): boolean {
+    return this.settings
+      .get(SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS)
+      .includes(fieldId)
+  }
+
   private getRenderType(mimeType: string): ContentRenderType {
     if (!mimeType) return ContentRenderType.Unknown
     if (mimeType === 'application/pdf') {
@@ -454,6 +465,11 @@ export class DocumentDetailComponent
           const openDocument = this.openDocumentService.getOpenDocument(
             this.documentId
           )
+          // update duplicate documents if present
+          if (openDocument && doc?.duplicate_documents) {
+            openDocument.duplicate_documents = doc.duplicate_documents
+            this.openDocumentService.save()
+          }
           const useDoc = openDocument || doc
           if (openDocument) {
             if (
@@ -704,6 +720,13 @@ export class DocumentDetailComponent
     }
     this.title = this.documentTitlePipe.transform(doc.title)
     this.prepareForm(doc)
+
+    if (
+      this.activeNavID === DocumentDetailNavIDs.Duplicates &&
+      !doc?.duplicate_documents?.length
+    ) {
+      this.activeNavID = DocumentDetailNavIDs.Details
+    }
   }
 
   get customFieldFormFields(): FormArray {

src-ui/src/app/components/manage/correspondent-list/correspondent-list.component.ts

@@ -14,6 +14,7 @@ import { SortableDirective } from 'src/app/directives/sortable.directive'
 import { CustomDatePipe } from 'src/app/pipes/custom-date.pipe'
 import { PermissionType } from 'src/app/services/permissions.service'
 import { CorrespondentService } from 'src/app/services/rest/correspondent.service'
+import { ClearableBadgeComponent } from '../../common/clearable-badge/clearable-badge.component'
 import { CorrespondentEditDialogComponent } from '../../common/edit-dialog/correspondent-edit-dialog/correspondent-edit-dialog.component'
 import { PageHeaderComponent } from '../../common/page-header/page-header.component'
 import { ManagementListComponent } from '../management-list/management-list.component'
@@ -36,6 +37,7 @@ import { ManagementListComponent } from '../management-list/management-list.comp
     NgbDropdownModule,
     NgbPaginationModule,
     NgxBootstrapIconsModule,
+    ClearableBadgeComponent,
   ],
 })
 export class CorrespondentListComponent extends ManagementListComponent<Correspondent> {

src-ui/src/app/components/manage/document-type-list/document-type-list.component.ts

@@ -13,6 +13,7 @@ import { IfPermissionsDirective } from 'src/app/directives/if-permissions.direct
 import { SortableDirective } from 'src/app/directives/sortable.directive'
 import { PermissionType } from 'src/app/services/permissions.service'
 import { DocumentTypeService } from 'src/app/services/rest/document-type.service'
+import { ClearableBadgeComponent } from '../../common/clearable-badge/clearable-badge.component'
 import { DocumentTypeEditDialogComponent } from '../../common/edit-dialog/document-type-edit-dialog/document-type-edit-dialog.component'
 import { PageHeaderComponent } from '../../common/page-header/page-header.component'
 import { ManagementListComponent } from '../management-list/management-list.component'
@@ -34,6 +35,7 @@ import { ManagementListComponent } from '../management-list/management-list.comp
     NgbDropdownModule,
     NgbPaginationModule,
     NgxBootstrapIconsModule,
+    ClearableBadgeComponent,
   ],
 })
 export class DocumentTypeListComponent extends ManagementListComponent<DocumentType> {

src-ui/src/app/components/manage/management-list/management-list.component.html

@@ -1,17 +1,48 @@
 <pngx-page-header title="{{ typeNamePlural | titlecase }}" info="View, add, edit and delete {{ typeNamePlural }}." infoLink="usage/#terms-and-definitions">
 
-  <button class="btn btn-sm btn-outline-secondary" (click)="clearSelection()" [hidden]="selectedObjects.size === 0">
-    <i-bs  name="x"></i-bs>&nbsp;<ng-container i18n>Clear selection</ng-container>
-    </button>
-    <button type="button" class="btn btn-sm btn-outline-primary" (click)="setPermissions()" [disabled]="!userCanBulkEdit(PermissionAction.Change) || selectedObjects.size === 0">
-      <i-bs name="person-fill-lock"></i-bs>&nbsp;<ng-container i18n>Permissions</ng-container>
-    </button>
-    <button type="button" class="btn btn-sm btn-outline-danger" (click)="delete()" [disabled]="!userCanBulkEdit(PermissionAction.Delete) || selectedObjects.size === 0">
-      <i-bs name="trash"></i-bs>&nbsp;<ng-container i18n>Delete</ng-container>
-    </button>
-    <button type="button" class="btn btn-sm btn-outline-primary ms-md-5" (click)="openCreateDialog()" *pngxIfPermissions="{ action: PermissionAction.Add, type: permissionType }">
-      <i-bs name="plus-circle"></i-bs>&nbsp;<ng-container i18n>Create</ng-container>
+  <div ngbDropdown class="btn-group flex-fill d-sm-none">
+    <button class="btn btn-sm btn-outline-primary" id="dropdownSelectMobile" ngbDropdownToggle>
+      <i-bs name="text-indent-left"></i-bs>
+      <div class="d-none d-sm-inline">&nbsp;<ng-container i18n>Select</ng-container></div>
+      @if (selectedObjects.size > 0) {
+        <pngx-clearable-badge [selected]="selectedObjects.size > 0" [number]="selectedObjects.size" (cleared)="selectNone()"></pngx-clearable-badge><span class="visually-hidden">selected</span>
+      }
     </button>
+    <div ngbDropdownMenu aria-labelledby="dropdownSelectMobile" class="shadow">
+      <button ngbDropdownItem (click)="selectNone()" i18n>Select none</button>
+      <button ngbDropdownItem (click)="selectPage(true)" i18n>Select page</button>
+      <button ngbDropdownItem (click)="selectAll()" i18n>Select all</button>
+    </div>
+  </div>
+
+  <div class="d-none d-sm-flex flex-fill me-3">
+    <div class="input-group input-group-sm">
+      <span class="input-group-text border-0" i18n>Select:</span>
+    </div>
+    <div class="btn-group btn-group-sm flex-nowrap">
+      @if (selectedObjects.size > 0) {
+        <button class="btn btn-sm btn-outline-secondary" (click)="selectNone()">
+          <i-bs name="slash-circle"></i-bs>&nbsp;<ng-container i18n>None</ng-container>
+        </button>
+      }
+      <button class="btn btn-sm btn-outline-primary" (click)="selectPage(true)">
+        <i-bs name="file-earmark-check"></i-bs>&nbsp;<ng-container i18n>Page</ng-container>
+      </button>
+      <button class="btn btn-sm btn-outline-primary" (click)="selectAll()">
+        <i-bs name="check-all"></i-bs>&nbsp;<ng-container i18n>All</ng-container>
+      </button>
+    </div>
+  </div>
+
+  <button type="button" class="btn btn-sm btn-outline-primary" (click)="setPermissions()" [disabled]="!userCanBulkEdit(PermissionAction.Change) || selectedObjects.size === 0">
+    <i-bs name="person-fill-lock"></i-bs>&nbsp;<ng-container i18n>Permissions</ng-container>
+  </button>
+  <button type="button" class="btn btn-sm btn-outline-danger" (click)="delete()" [disabled]="!userCanBulkEdit(PermissionAction.Delete) || selectedObjects.size === 0">
+    <i-bs name="trash"></i-bs>&nbsp;<ng-container i18n>Delete</ng-container>
+  </button>
+  <button type="button" class="btn btn-sm btn-outline-primary ms-md-5" (click)="openCreateDialog()" *pngxIfPermissions="{ action: PermissionAction.Add, type: permissionType }">
+    <i-bs name="plus-circle"></i-bs>&nbsp;<ng-container i18n>Create</ng-container>
+  </button>
 </pngx-page-header>
 
 <div class="row mb-3">
@@ -31,7 +62,7 @@
       <tr>
         <th scope="col">
           <div class="form-check m-0 ms-2 me-n2">
-            <input type="checkbox" class="form-check-input" id="all-objects" [(ngModel)]="togggleAll" [disabled]="data.length === 0" (click)="toggleAll($event); $event.stopPropagation();">
+            <input type="checkbox" class="form-check-input" id="all-objects" [(ngModel)]="togggleAll" [disabled]="data.length === 0" (change)="selectPage($event.target.checked); $event.stopPropagation();">
             <label class="form-check-label" for="all-objects"></label>
           </div>
         </th>

src-ui/src/app/components/manage/management-list/management-list.component.spec.ts

@@ -163,8 +163,7 @@ describe('ManagementListComponent', () => {
     const toastInfoSpy = jest.spyOn(toastService, 'showInfo')
     const reloadSpy = jest.spyOn(component, 'reloadData')
 
-    const createButton = fixture.debugElement.queryAll(By.css('button'))[4]
-    createButton.triggerEventHandler('click')
+    component.openCreateDialog()
 
     expect(modal).not.toBeUndefined()
     const editDialog = modal.componentInstance as EditDialogComponent<Tag>
@@ -187,8 +186,7 @@ describe('ManagementListComponent', () => {
     const toastInfoSpy = jest.spyOn(toastService, 'showInfo')
     const reloadSpy = jest.spyOn(component, 'reloadData')
 
-    const editButton = fixture.debugElement.queryAll(By.css('button'))[7]
-    editButton.triggerEventHandler('click')
+    component.openEditDialog(tags[0])
 
     expect(modal).not.toBeUndefined()
     const editDialog = modal.componentInstance as EditDialogComponent<Tag>
@@ -212,8 +210,7 @@ describe('ManagementListComponent', () => {
     const deleteSpy = jest.spyOn(tagService, 'delete')
     const reloadSpy = jest.spyOn(component, 'reloadData')
 
-    const deleteButton = fixture.debugElement.queryAll(By.css('button'))[8]
-    deleteButton.triggerEventHandler('click')
+    component.openDeleteDialog(tags[0])
 
     expect(modal).not.toBeUndefined()
     const editDialog = modal.componentInstance as ConfirmDialogComponent
@@ -230,6 +227,21 @@ describe('ManagementListComponent', () => {
     expect(reloadSpy).toHaveBeenCalled()
   })
 
+  it('should use the all list length for collection size when provided', fakeAsync(() => {
+    jest.spyOn(tagService, 'listFiltered').mockReturnValueOnce(
+      of({
+        count: 1,
+        all: [1, 2, 3],
+        results: tags.slice(0, 1),
+      })
+    )
+
+    component.reloadData()
+    tick(100)
+
+    expect(component.collectionSize).toBe(3)
+  }))
+
   it('should support quick filter for objects', () => {
     const expectedUrl = documentListViewService.getQuickFilterUrl([
       { rule_type: FILTER_HAS_TAGS_ALL, value: tags[0].id.toString() },
@@ -264,19 +276,84 @@ describe('ManagementListComponent', () => {
     expect(component.page).toEqual(1)
   })
 
-  it('should support toggle all items in view', () => {
+  it('should support toggle select page in vew', () => {
     expect(component.selectedObjects.size).toEqual(0)
-    const toggleAllSpy = jest.spyOn(component, 'toggleAll')
+    const selectPageSpy = jest.spyOn(component, 'selectPage')
     const checkButton = fixture.debugElement.queryAll(
       By.css('input.form-check-input')
     )[0]
-    checkButton.nativeElement.dispatchEvent(new Event('click'))
+    checkButton.nativeElement.dispatchEvent(new Event('change'))
     checkButton.nativeElement.checked = true
-    checkButton.nativeElement.dispatchEvent(new Event('click'))
-    expect(toggleAllSpy).toHaveBeenCalled()
+    checkButton.nativeElement.dispatchEvent(new Event('change'))
+    expect(selectPageSpy).toHaveBeenCalled()
     expect(component.selectedObjects.size).toEqual(tags.length)
   })
 
+  it('selectNone should clear selection and reset toggle flag', () => {
+    component.selectedObjects = new Set([tags[0].id, tags[1].id])
+    component.togggleAll = true
+
+    component.selectNone()
+
+    expect(component.selectedObjects.size).toBe(0)
+    expect(component.togggleAll).toBe(false)
+  })
+
+  it('selectPage should select current page items or clear selection', () => {
+    component.selectPage(true)
+    expect(component.selectedObjects).toEqual(new Set(tags.map((t) => t.id)))
+    expect(component.togggleAll).toBe(true)
+
+    component.togggleAll = true
+    component.selectPage(false)
+    expect(component.selectedObjects.size).toBe(0)
+    expect(component.togggleAll).toBe(false)
+  })
+
+  it('selectAll should use all IDs when collection size exists', () => {
+    ;(component as any).allIDs = [1, 2, 3, 4]
+    component.collectionSize = 4
+
+    component.selectAll()
+
+    expect(component.selectedObjects).toEqual(new Set([1, 2, 3, 4]))
+    expect(component.togggleAll).toBe(true)
+  })
+
+  it('selectAll should clear selection when collection size is zero', () => {
+    component.selectedObjects = new Set([1])
+    component.collectionSize = 0
+    component.togggleAll = true
+
+    component.selectAll()
+
+    expect(component.selectedObjects.size).toBe(0)
+    expect(component.togggleAll).toBe(false)
+  })
+
+  it('toggleSelected should toggle object selection and update toggle state', () => {
+    component.toggleSelected(tags[0])
+    expect(component.selectedObjects.has(tags[0].id)).toBe(true)
+    expect(component.togggleAll).toBe(false)
+
+    component.toggleSelected(tags[1])
+    component.toggleSelected(tags[2])
+    expect(component.togggleAll).toBe(true)
+
+    component.toggleSelected(tags[1])
+    expect(component.selectedObjects.has(tags[1].id)).toBe(false)
+    expect(component.togggleAll).toBe(false)
+  })
+
+  it('areAllPageItemsSelected should return false when page has no selectable items', () => {
+    component.data = []
+    component.selectedObjects.clear()
+
+    expect((component as any).areAllPageItemsSelected()).toBe(false)
+
+    component.data = tags
+  })
+
   it('should support bulk edit permissions', () => {
     const bulkEditPermsSpy = jest.spyOn(tagService, 'bulk_edit_objects')
     component.toggleSelected(tags[0])

src-ui/src/app/components/manage/management-list/management-list.component.ts

@@ -84,6 +84,7 @@ export abstract class ManagementListComponent<T extends MatchingModel>
 
   public data: T[] = []
   private unfilteredData: T[] = []
+  private allIDs: number[] = []
 
   public page = 1
 
@@ -171,7 +172,8 @@ export abstract class ManagementListComponent<T extends MatchingModel>
         tap((c) => {
           this.unfilteredData = c.results
           this.data = this.filterData(c.results)
-          this.collectionSize = c.count
+          this.collectionSize = c.all?.length ?? c.count
+          this.allIDs = c.all
         }),
         delay(100)
       )
@@ -300,16 +302,6 @@ export abstract class ManagementListComponent<T extends MatchingModel>
     return ownsAll
   }
 
-  toggleAll(event: PointerEvent) {
-    const checked = (event.target as HTMLInputElement).checked
-    this.togggleAll = checked
-    if (checked) {
-      this.selectedObjects = new Set(this.getSelectableIDs(this.data))
-    } else {
-      this.clearSelection()
-    }
-  }
-
   protected getSelectableIDs(objects: T[]): number[] {
     return objects.map((o) => o.id)
   }
@@ -319,10 +311,38 @@ export abstract class ManagementListComponent<T extends MatchingModel>
     this.selectedObjects.clear()
   }
 
+  selectNone() {
+    this.clearSelection()
+  }
+
+  selectPage(select: boolean) {
+    if (select) {
+      this.selectedObjects = new Set(this.getSelectableIDs(this.data))
+      this.togggleAll = this.areAllPageItemsSelected()
+    } else {
+      this.clearSelection()
+    }
+  }
+
+  selectAll() {
+    if (!this.collectionSize) {
+      this.clearSelection()
+      return
+    }
+    this.selectedObjects = new Set(this.allIDs)
+    this.togggleAll = this.areAllPageItemsSelected()
+  }
+
   toggleSelected(object) {
     this.selectedObjects.has(object.id)
       ? this.selectedObjects.delete(object.id)
       : this.selectedObjects.add(object.id)
+    this.togggleAll = this.areAllPageItemsSelected()
+  }
+
+  protected areAllPageItemsSelected(): boolean {
+    const ids = this.getSelectableIDs(this.data)
+    return ids.length > 0 && ids.every((id) => this.selectedObjects.has(id))
   }
 
   setPermissions() {

src-ui/src/app/components/manage/storage-path-list/storage-path-list.component.ts

@@ -13,6 +13,7 @@ import { IfPermissionsDirective } from 'src/app/directives/if-permissions.direct
 import { SortableDirective } from 'src/app/directives/sortable.directive'
 import { PermissionType } from 'src/app/services/permissions.service'
 import { StoragePathService } from 'src/app/services/rest/storage-path.service'
+import { ClearableBadgeComponent } from '../../common/clearable-badge/clearable-badge.component'
 import { StoragePathEditDialogComponent } from '../../common/edit-dialog/storage-path-edit-dialog/storage-path-edit-dialog.component'
 import { PageHeaderComponent } from '../../common/page-header/page-header.component'
 import { ManagementListComponent } from '../management-list/management-list.component'
@@ -34,6 +35,7 @@ import { ManagementListComponent } from '../management-list/management-list.comp
     NgbDropdownModule,
     NgbPaginationModule,
     NgxBootstrapIconsModule,
+    ClearableBadgeComponent,
   ],
 })
 export class StoragePathListComponent extends ManagementListComponent<StoragePath> {

src-ui/src/app/components/manage/tag-list/tag-list.component.spec.ts

@@ -138,16 +138,12 @@ describe('TagListComponent', () => {
     }
 
     component.data = [parent as any]
-    const selectEvent = { target: { checked: true } } as unknown as PointerEvent
-    component.toggleAll(selectEvent)
+    component.selectPage(true)
 
     expect(component.selectedObjects.has(10)).toBe(true)
     expect(component.selectedObjects.has(11)).toBe(true)
 
-    const deselectEvent = {
-      target: { checked: false },
-    } as unknown as PointerEvent
-    component.toggleAll(deselectEvent)
+    component.selectPage(false)
     expect(component.selectedObjects.size).toBe(0)
   })
 })

src-ui/src/app/components/manage/tag-list/tag-list.component.ts

@@ -13,6 +13,7 @@ import { IfPermissionsDirective } from 'src/app/directives/if-permissions.direct
 import { SortableDirective } from 'src/app/directives/sortable.directive'
 import { PermissionType } from 'src/app/services/permissions.service'
 import { TagService } from 'src/app/services/rest/tag.service'
+import { ClearableBadgeComponent } from '../../common/clearable-badge/clearable-badge.component'
 import { TagEditDialogComponent } from '../../common/edit-dialog/tag-edit-dialog/tag-edit-dialog.component'
 import { PageHeaderComponent } from '../../common/page-header/page-header.component'
 import { ManagementListComponent } from '../management-list/management-list.component'
@@ -34,6 +35,7 @@ import { ManagementListComponent } from '../management-list/management-list.comp
     NgbDropdownModule,
     NgbPaginationModule,
     NgxBootstrapIconsModule,
+    ClearableBadgeComponent,
   ],
 })
 export class TagListComponent extends ManagementListComponent<Tag> {

src-ui/src/app/data/document.ts

@@ -159,6 +159,8 @@ export interface Document extends ObjectWithPermissions {
 
   page_count?: number
 
+  duplicate_documents?: Document[]
+
   // Frontend only
   __changedFields?: string[]
 }

src-ui/src/app/data/paperless-task.ts

@@ -1,3 +1,4 @@
+import { Document } from './document'
 import { ObjectWithId } from './object-with-id'
 
 export enum PaperlessTaskType {
@@ -42,5 +43,7 @@ export interface PaperlessTask extends ObjectWithId {
 
   related_document?: number
 
+  duplicate_documents?: Document[]
+
   owner?: number
 }

src-ui/src/app/data/ui-settings.ts

@@ -70,6 +70,8 @@ export const SETTINGS_KEYS = {
     'general-settings:document-editing:remove-inbox-tags',
   DOCUMENT_EDITING_OVERLAY_THUMBNAIL:
     'general-settings:document-editing:overlay-thumbnail',
+  DOCUMENT_DETAILS_HIDDEN_FIELDS:
+    'general-settings:document-details:hidden-fields',
   SEARCH_DB_ONLY: 'general-settings:search:db-only',
   SEARCH_FULL_TYPE: 'general-settings:search:more-link',
   EMPTY_TRASH_DELAY: 'trash_delay',
@@ -255,6 +257,11 @@ export const SETTINGS: UiSetting[] = [
     type: 'boolean',
     default: true,
   },
+  {
+    key: SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS,
+    type: 'array',
+    default: [],
+  },
   {
     key: SETTINGS_KEYS.SEARCH_DB_ONLY,
     type: 'boolean',

src/documents/consumer.py

@@ -779,19 +779,45 @@ class ConsumerPreflightPlugin(
             Q(checksum=checksum) | Q(archive_checksum=checksum),
         )
         if existing_doc.exists():
-            msg = ConsumerStatusShortMessage.DOCUMENT_ALREADY_EXISTS
-            log_msg = f"Not consuming {self.filename}: It is a duplicate of {existing_doc.get().title} (#{existing_doc.get().pk})."
+            existing_doc = existing_doc.order_by("-created")
+            duplicates_in_trash = existing_doc.filter(deleted_at__isnull=False)
+            log_msg = (
+                f"Consuming duplicate {self.filename}: "
+                f"{existing_doc.count()} existing document(s) share the same content."
+            )
 
-            if existing_doc.first().deleted_at is not None:
-                msg = ConsumerStatusShortMessage.DOCUMENT_ALREADY_EXISTS_IN_TRASH
-                log_msg += " Note: existing document is in the trash."
+            if duplicates_in_trash.exists():
+                log_msg += " Note: at least one existing document is in the trash."
+
+            self.log.warning(log_msg)
 
             if settings.CONSUMER_DELETE_DUPLICATES:
+                duplicate = existing_doc.first()
+                duplicate_label = (
+                    duplicate.title
+                    or duplicate.original_filename
+                    or (Path(duplicate.filename).name if duplicate.filename else None)
+                    or str(duplicate.pk)
+                )
+
                 Path(self.input_doc.original_file).unlink()
-            self._fail(
-                msg,
-                log_msg,
-            )
+
+                failure_msg = (
+                    f"Not consuming {self.filename}: "
+                    f"It is a duplicate of {duplicate_label} (#{duplicate.pk})"
+                )
+                status_msg = ConsumerStatusShortMessage.DOCUMENT_ALREADY_EXISTS
+
+                if duplicates_in_trash.exists():
+                    status_msg = (
+                        ConsumerStatusShortMessage.DOCUMENT_ALREADY_EXISTS_IN_TRASH
+                    )
+                    failure_msg += " Note: existing document is in the trash."
+
+                self._fail(
+                    status_msg,
+                    failure_msg,
+                )
 
     def pre_check_directories(self):
         """

src/documents/index.py

@@ -602,7 +602,7 @@ def rewrite_natural_date_keywords(query_string: str) -> str:
 
             case "this year":
                 start = datetime(local_now.year, 1, 1, 0, 0, 0, tzinfo=tz)
-                end = datetime.combine(today, time.max, tzinfo=tz)
+                end = datetime(local_now.year, 12, 31, 23, 59, 59, tzinfo=tz)
 
             case "previous week":
                 days_since_monday = local_now.weekday()

src/documents/management/commands/document_perf_benchmark.py

@@ -0,0 +1,598 @@
+import math
+import uuid
+from time import perf_counter
+
+from django.contrib.auth import get_user_model
+from django.core.management.base import BaseCommand
+from django.core.management.base import CommandError
+from django.db import reset_queries
+from django.db.models import Count
+from django.db.models import Q
+from django.db.models import Subquery
+from guardian.shortcuts import assign_perm
+
+from documents.models import CustomField
+from documents.models import CustomFieldInstance
+from documents.models import Document
+from documents.models import Tag
+from documents.permissions import get_objects_for_user_owner_aware
+from documents.permissions import permitted_document_ids
+
+
+class Command(BaseCommand):
+    # e.g. manage.py document_perf_benchmark --documents 500000 --chunk-size 5000 --tags 40 --tags-per-doc 3 --custom-fields 6 --custom-fields-per-doc 2
+    help = (
+        "Seed a synthetic dataset and benchmark permission-filtered document queries "
+        "for superusers vs non-superusers."
+    )
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--documents",
+            type=int,
+            default=10000,
+            help="Total documents to generate (default: 10,000)",
+        )
+        parser.add_argument(
+            "--owner-ratio",
+            type=float,
+            default=0.6,
+            help="Fraction owned by the benchmarked user (default: 0.6)",
+        )
+        parser.add_argument(
+            "--unowned-ratio",
+            type=float,
+            default=0.1,
+            help="Fraction of unowned documents (default: 0.1)",
+        )
+        parser.add_argument(
+            "--shared-ratio",
+            type=float,
+            default=0.25,
+            help=(
+                "Fraction of other-user documents that are shared via object perms "
+                "with the benchmarked user (default: 0.25)"
+            ),
+        )
+        parser.add_argument(
+            "--chunk-size",
+            type=int,
+            default=2000,
+            help="Bulk create size for documents (default: 2000)",
+        )
+        parser.add_argument(
+            "--iterations",
+            type=int,
+            default=3,
+            help="Number of timing runs per query shape (default: 3)",
+        )
+        parser.add_argument(
+            "--prefix",
+            default="perf-benchmark",
+            help="Title prefix used to mark generated documents (default: perf-benchmark)",
+        )
+        parser.add_argument(
+            "--username",
+            default="perf_user",
+            help="Username of the non-superuser to benchmark (default: perf_user)",
+        )
+        parser.add_argument(
+            "--other-username",
+            default="perf_owner",
+            help="Username used for documents not owned by the benchmarked user (default: perf_owner)",
+        )
+        parser.add_argument(
+            "--super-username",
+            default="perf_admin",
+            help="Username of the superuser baseline (default: perf_admin)",
+        )
+        parser.add_argument(
+            "--tags",
+            type=int,
+            default=0,
+            help="Number of tags to create and assign (default: 0)",
+        )
+        parser.add_argument(
+            "--tags-per-doc",
+            type=int,
+            default=1,
+            help="How many tags to attach to each document (default: 1)",
+        )
+        parser.add_argument(
+            "--custom-fields",
+            type=int,
+            default=0,
+            help="Number of string custom fields to create (default: 0)",
+        )
+        parser.add_argument(
+            "--custom-fields-per-doc",
+            type=int,
+            default=1,
+            help="How many custom field instances per document (default: 1)",
+        )
+        parser.add_argument(
+            "--skip-tags",
+            action="store_true",
+            help="Skip tag document_count benchmarks (useful for large datasets on Postgres)",
+        )
+        parser.add_argument(
+            "--skip-custom-fields",
+            action="store_true",
+            help="Skip custom field document_count benchmarks",
+        )
+        parser.add_argument(
+            "--reuse-existing",
+            action="store_true",
+            help="Keep previously generated documents with the given prefix instead of recreating",
+        )
+        parser.add_argument(
+            "--cleanup",
+            action="store_true",
+            help="Delete previously generated documents with the given prefix and exit",
+        )
+
+    def handle(self, *args, **options):
+        # keep options for downstream checks
+        self.options = options
+
+        document_total = options["documents"]
+        owner_ratio = options["owner_ratio"]
+        unowned_ratio = options["unowned_ratio"]
+        shared_ratio = options["shared_ratio"]
+        chunk_size = options["chunk_size"]
+        iterations = options["iterations"]
+        prefix = options["prefix"]
+        tags = options["tags"]
+        tags_per_doc = options["tags_per_doc"]
+        custom_fields = options["custom_fields"]
+        custom_fields_per_doc = options["custom_fields_per_doc"]
+
+        self._validate_ratios(owner_ratio, unowned_ratio)
+        if tags_per_doc < 0 or custom_fields_per_doc < 0:
+            raise CommandError("Per-document counts must be non-negative")
+
+        target_user, other_user, superuser = self._ensure_users(options)
+
+        skip_seed = False
+
+        if options["cleanup"]:
+            removed = self._cleanup(prefix)
+            self.stdout.write(
+                self.style.SUCCESS(f"Removed {removed} generated documents"),
+            )
+            return
+
+        if not options["reuse_existing"]:
+            removed = self._cleanup(prefix)
+            if removed:
+                self.stdout.write(f"Removed existing generated documents: {removed}")
+        else:
+            existing = Document.objects.filter(title__startswith=prefix).count()
+            if existing:
+                skip_seed = True
+                self.stdout.write(
+                    f"Reusing existing dataset with prefix '{prefix}': {existing} docs",
+                )
+
+        if skip_seed:
+            dataset_size = Document.objects.filter(title__startswith=prefix).count()
+            self.stdout.write(
+                self.style.SUCCESS(
+                    f"Dataset ready (reused): {dataset_size} docs | prefix={prefix}",
+                ),
+            )
+        else:
+            self.stdout.write(
+                f"Seeding {document_total} documents (owner_ratio={owner_ratio}, "
+                f"unowned_ratio={unowned_ratio}, shared_ratio={shared_ratio})",
+            )
+            created_counts = self._seed_documents(
+                total=document_total,
+                owner_ratio=owner_ratio,
+                unowned_ratio=unowned_ratio,
+                shared_ratio=shared_ratio,
+                chunk_size=chunk_size,
+                prefix=prefix,
+                target_user=target_user,
+                other_user=other_user,
+            )
+
+            created_tags = []
+            if tags:
+                created_tags = self._seed_tags(prefix=prefix, count=tags)
+                if tags_per_doc and created_tags:
+                    self._assign_tags_to_documents(
+                        prefix=prefix,
+                        tags=created_tags,
+                        tags_per_doc=tags_per_doc,
+                        chunk_size=chunk_size,
+                    )
+
+            created_custom_fields = []
+            if custom_fields:
+                created_custom_fields = self._seed_custom_fields(prefix, custom_fields)
+                if custom_fields_per_doc and created_custom_fields:
+                    self._seed_custom_field_instances(
+                        prefix=prefix,
+                        custom_fields=created_custom_fields,
+                        per_doc=custom_fields_per_doc,
+                        chunk_size=chunk_size,
+                    )
+
+            dataset_size = Document.objects.filter(title__startswith=prefix).count()
+            self.stdout.write(
+                self.style.SUCCESS(
+                    f"Dataset ready: {dataset_size} docs | owned by target {created_counts['owned']} | "
+                    f"owned by other {created_counts['other_owned']} | unowned {created_counts['unowned']} | "
+                    f"shared-perms {created_counts['shared']} | tags {len(created_tags)} | "
+                    f"custom fields {len(created_custom_fields)}",
+                ),
+            )
+
+        self.stdout.write("\nRunning benchmarks...\n")
+        self._run_benchmarks(
+            iterations=iterations,
+            target_user=target_user,
+            superuser=superuser,
+            prefix=prefix,
+        )
+
+    def _validate_ratios(self, owner_ratio: float, unowned_ratio: float):
+        if owner_ratio < 0 or unowned_ratio < 0:
+            raise CommandError("Ratios must be non-negative")
+        if owner_ratio + unowned_ratio > 1:
+            raise CommandError("owner-ratio + unowned-ratio cannot exceed 1.0")
+
+    def _ensure_users(self, options):
+        User = get_user_model()
+        target_user, _ = User.objects.get_or_create(
+            username=options["username"],
+            defaults={"email": "perf_user@example.com"},
+        )
+        other_user, _ = User.objects.get_or_create(
+            username=options["other_username"],
+            defaults={"email": "perf_owner@example.com"},
+        )
+        superuser, _ = User.objects.get_or_create(
+            username=options["super_username"],
+            defaults={
+                "email": "perf_admin@example.com",
+                "is_staff": True,
+                "is_superuser": True,
+            },
+        )
+        return target_user, other_user, superuser
+
+    def _cleanup(self, prefix: str) -> int:
+        docs_qs = Document.global_objects.filter(title__startswith=prefix)
+        doc_count = docs_qs.count()
+        if doc_count:
+            docs_qs.hard_delete()
+
+        tag_count = Tag.objects.filter(name__startswith=prefix).count()
+        if tag_count:
+            Tag.objects.filter(name__startswith=prefix).delete()
+
+        cf_qs = CustomField.objects.filter(name__startswith=prefix)
+        cf_count = cf_qs.count()
+        if cf_count:
+            cf_qs.delete()
+
+        cfi_qs = CustomFieldInstance.global_objects.filter(
+            document__title__startswith=prefix,
+        )
+        cfi_count = cfi_qs.count()
+        if cfi_count:
+            cfi_qs.hard_delete()
+
+        return doc_count + tag_count + cf_count + cfi_count
+
+    def _seed_documents(
+        self,
+        *,
+        total: int,
+        owner_ratio: float,
+        unowned_ratio: float,
+        shared_ratio: float,
+        chunk_size: int,
+        prefix: str,
+        target_user,
+        other_user,
+    ) -> dict[str, int]:
+        target_count = math.floor(total * owner_ratio)
+        unowned_count = math.floor(total * unowned_ratio)
+        other_count = total - target_count - unowned_count
+
+        documents: list[Document] = []
+        other_docs: list[Document] = []
+
+        for idx in range(total):
+            if idx < target_count:
+                owner = target_user
+            elif idx < target_count + other_count:
+                owner = other_user
+            else:
+                owner = None
+
+            doc = Document(
+                owner=owner,
+                title=f"{prefix}-{idx:07d}",
+                mime_type="application/pdf",
+                checksum=self._unique_checksum(idx),
+                page_count=1,
+            )
+
+            if owner is other_user:
+                other_docs.append(doc)
+
+            documents.append(doc)
+
+            if len(documents) >= chunk_size:
+                Document.objects.bulk_create(documents, batch_size=chunk_size)
+                documents.clear()
+
+        if documents:
+            Document.objects.bulk_create(documents, batch_size=chunk_size)
+
+        shared_target = math.floor(len(other_docs) * shared_ratio)
+        for doc in other_docs[:shared_target]:
+            assign_perm("documents.view_document", target_user, doc)
+
+        return {
+            "owned": target_count,
+            "other_owned": other_count,
+            "unowned": unowned_count,
+            "shared": shared_target,
+        }
+
+    def _seed_tags(self, *, prefix: str, count: int) -> list[Tag]:
+        tags = [
+            Tag(
+                name=f"{prefix}-tag-{idx:03d}",
+            )
+            for idx in range(count)
+        ]
+        Tag.objects.bulk_create(tags, ignore_conflicts=True)
+        return list(Tag.objects.filter(name__startswith=prefix))
+
+    def _assign_tags_to_documents(
+        self,
+        *,
+        prefix: str,
+        tags: list[Tag],
+        tags_per_doc: int,
+        chunk_size: int,
+    ):
+        if not tags or tags_per_doc < 1:
+            return
+
+        rels = []
+        through = Document.tags.through
+        tag_ids = [t.id for t in tags]
+        tag_count = len(tag_ids)
+        iterator = (
+            Document.objects.filter(title__startswith=prefix)
+            .values_list(
+                "id",
+                flat=True,
+            )
+            .iterator()
+        )
+
+        for idx, doc_id in enumerate(iterator):
+            start = idx % tag_count
+            chosen = set()
+            for offset in range(tags_per_doc):
+                tag_id = tag_ids[(start + offset) % tag_count]
+                if tag_id in chosen:
+                    continue
+                chosen.add(tag_id)
+                rels.append(through(document_id=doc_id, tag_id=tag_id))
+            if len(rels) >= chunk_size:
+                through.objects.bulk_create(rels, ignore_conflicts=True)
+                rels.clear()
+
+        if rels:
+            through.objects.bulk_create(rels, ignore_conflicts=True)
+
+    def _seed_custom_fields(self, prefix: str, count: int) -> list[CustomField]:
+        fields = [
+            CustomField(
+                name=f"{prefix}-cf-{idx:03d}",
+                data_type=CustomField.FieldDataType.STRING,
+            )
+            for idx in range(count)
+        ]
+        CustomField.objects.bulk_create(fields, ignore_conflicts=True)
+        return list(CustomField.objects.filter(name__startswith=prefix))
+
+    def _seed_custom_field_instances(
+        self,
+        *,
+        prefix: str,
+        custom_fields: list[CustomField],
+        per_doc: int,
+        chunk_size: int,
+    ):
+        if not custom_fields or per_doc < 1:
+            return
+
+        instances = []
+        cf_ids = [cf.id for cf in custom_fields]
+        cf_count = len(cf_ids)
+        iterator = (
+            Document.objects.filter(title__startswith=prefix)
+            .values_list(
+                "id",
+                flat=True,
+            )
+            .iterator()
+        )
+
+        for idx, doc_id in enumerate(iterator):
+            start = idx % cf_count
+            for offset in range(per_doc):
+                cf_id = cf_ids[(start + offset) % cf_count]
+                instances.append(
+                    CustomFieldInstance(
+                        document_id=doc_id,
+                        field_id=cf_id,
+                        value_text=f"val-{doc_id}-{cf_id}",
+                    ),
+                )
+            if len(instances) >= chunk_size:
+                CustomFieldInstance.objects.bulk_create(
+                    instances,
+                    batch_size=chunk_size,
+                    ignore_conflicts=True,
+                )
+                instances.clear()
+
+        if instances:
+            CustomFieldInstance.objects.bulk_create(
+                instances,
+                batch_size=chunk_size,
+                ignore_conflicts=True,
+            )
+
+    def _run_benchmarks(self, *, iterations: int, target_user, superuser, prefix: str):
+        self.stdout.write("-> doc counts")
+        self._time_query(
+            label="non-superuser: id__in(values_list flat=True)",
+            iterations=iterations,
+            fn=lambda: self._count_with_values_list(target_user),
+        )
+        self._time_query(
+            label="non-superuser: id__in(Subquery(values_list))",
+            iterations=iterations,
+            fn=lambda: self._count_with_subquery(target_user),
+        )
+        self._time_query(
+            label="superuser baseline",
+            iterations=iterations,
+            fn=lambda: Document.objects.count(),
+        )
+        if not self.options.get("skip_tags"):
+            self.stdout.write("-> tag counts")
+            self._time_tag_counts(
+                iterations=iterations,
+                prefix=prefix,
+                user=target_user,
+            )
+        if not self.options.get("skip_custom_fields"):
+            self.stdout.write("-> custom field counts")
+            self._time_custom_field_counts(
+                iterations=iterations,
+                prefix=prefix,
+                user=target_user,
+                superuser=superuser,
+            )
+
+    def _count_with_values_list(self, user) -> int:
+        qs = get_objects_for_user_owner_aware(
+            user,
+            "documents.view_document",
+            Document,
+        )
+        return Document.objects.filter(id__in=qs.values_list("id", flat=True)).count()
+
+    def _count_with_subquery(self, user) -> int:
+        qs = get_objects_for_user_owner_aware(
+            user,
+            "documents.view_document",
+            Document,
+        )
+        subquery = Subquery(qs.values_list("id"))
+        return Document.objects.filter(id__in=subquery).count()
+
+    def _document_filter(self, user, *, use_subquery: bool):
+        if user is None or getattr(user, "is_superuser", False):
+            return Q(documents__deleted_at__isnull=True)
+
+        qs = get_objects_for_user_owner_aware(
+            user,
+            "documents.view_document",
+            Document,
+        )
+        ids = (
+            Subquery(qs.values_list("id"))
+            if use_subquery
+            else qs.values_list("id", flat=True)
+        )
+        return Q(documents__deleted_at__isnull=True, documents__id__in=ids)
+
+    def _tag_queryset(self, *, prefix: str, filter_q: Q):
+        return Tag.objects.filter(name__startswith=prefix).annotate(
+            document_count=Count("documents", filter=filter_q),
+        )
+
+    def _time_tag_counts(self, *, iterations: int, prefix: str, user):
+        if not Tag.objects.filter(name__startswith=prefix).exists():
+            return
+
+        self._time_query(
+            label="tag document_count (grouped)",
+            iterations=iterations,
+            fn=lambda: list(
+                Tag.documents.through.objects.filter(
+                    document_id__in=Subquery(permitted_document_ids(user)),
+                )
+                .values("tag_id")
+                .annotate(c=Count("document_id"))
+                .values_list("tag_id", "c"),
+            ),
+        )
+
+    def _time_custom_field_counts(
+        self,
+        *,
+        iterations: int,
+        prefix: str,
+        user,
+        superuser,
+    ):
+        if not CustomField.objects.filter(name__startswith=prefix).exists():
+            return
+
+        permitted = Subquery(permitted_document_ids(user))
+        super_permitted = CustomFieldInstance.objects.filter(
+            document__deleted_at__isnull=True,
+        ).values_list("document_id")
+
+        def _run(ids_subquery):
+            return list(
+                CustomFieldInstance.objects.filter(
+                    document_id__in=ids_subquery,
+                    field__name__startswith=prefix,
+                )
+                .values("field_id")
+                .annotate(c=Count("document_id"))
+                .values_list("field_id", "c"),
+            )
+
+        self._time_query(
+            label="custom fields document_count (grouped permitted)",
+            iterations=iterations,
+            fn=lambda: _run(permitted),
+        )
+        self._time_query(
+            label="custom fields document_count superuser baseline",
+            iterations=iterations,
+            fn=lambda: _run(super_permitted),
+        )
+
+    def _time_query(self, *, label: str, iterations: int, fn):
+        durations = []
+        for _ in range(iterations):
+            reset_queries()
+            start = perf_counter()
+            fn()
+            durations.append(perf_counter() - start)
+
+        avg = sum(durations) / len(durations)
+        self.stdout.write(
+            f"{label}: min={min(durations):.4f}s avg={avg:.4f}s max={max(durations):.4f}s",
+        )
+
+    def _unique_checksum(self, idx: int) -> str:
+        return f"{uuid.uuid4().hex}{idx:08d}"[:32]

src/documents/migrations/0006_alter_document_checksum_unique.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.2.7 on 2026-01-14 17:45
+
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("documents", "0005_workflowtrigger_filter_has_any_correspondents_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="document",
+            name="checksum",
+            field=models.CharField(
+                editable=False,
+                max_length=32,
+                verbose_name="checksum",
+                help_text="The checksum of the original document.",
+            ),
+        ),
+    ]

src/documents/migrations/0007_document_content_length.py

@@ -0,0 +1,25 @@
+# Generated by Django 5.2.6 on 2026-01-24 07:33
+
+import django.db.models.functions.text
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("documents", "0006_alter_document_checksum_unique"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="document",
+            name="content_length",
+            field=models.GeneratedField(
+                db_persist=True,
+                expression=django.db.models.functions.text.Length("content"),
+                null=False,
+                help_text="Length of the content field in characters. Automatically maintained by the database for faster statistics computation.",
+                output_field=models.PositiveIntegerField(default=0),
+            ),
+        ),
+    ]

src/documents/models.py

@@ -20,7 +20,9 @@ if settings.AUDIT_LOG_ENABLED:
     from auditlog.registry import auditlog
 
 from django.db.models import Case
+from django.db.models import PositiveIntegerField
 from django.db.models.functions import Cast
+from django.db.models.functions import Length
 from django.db.models.functions import Substr
 from django_softdelete.models import SoftDeleteModel
 
@@ -192,6 +194,15 @@ class Document(SoftDeleteModel, ModelWithOwner):
         ),
     )
 
+    content_length = models.GeneratedField(
+        expression=Length("content"),
+        output_field=PositiveIntegerField(default=0),
+        db_persist=True,
+        null=False,
+        serialize=False,
+        help_text="Length of the content field in characters. Automatically maintained by the database for faster statistics computation.",
+    )
+
     mime_type = models.CharField(_("mime type"), max_length=256, editable=False)
 
     tags = models.ManyToManyField(
@@ -205,7 +216,6 @@ class Document(SoftDeleteModel, ModelWithOwner):
         _("checksum"),
         max_length=32,
         editable=False,
-        unique=True,
         help_text=_("The checksum of the original document."),
     )
 
@@ -946,7 +956,7 @@ if settings.AUDIT_LOG_ENABLED:
     auditlog.register(
         Document,
         m2m_fields={"tags"},
-        exclude_fields=["modified"],
+        exclude_fields=["content_length", "modified"],
     )
     auditlog.register(Correspondent)
     auditlog.register(Tag)

src/documents/permissions.py

@@ -139,22 +139,48 @@ def get_document_count_filter_for_user(user):
     if getattr(user, "is_superuser", False):
         return Q(documents__deleted_at__isnull=True)
     return Q(
-        documents__deleted_at__isnull=True,
-        documents__id__in=get_objects_for_user_owner_aware(
-            user,
-            "documents.view_document",
-            Document,
-        ).values_list("id", flat=True),
+        documents__id__in=permitted_document_ids(user),
     )
 
 
-def get_objects_for_user_owner_aware(user, perms, Model) -> QuerySet:
-    objects_owned = Model.objects.filter(owner=user)
-    objects_unowned = Model.objects.filter(owner__isnull=True)
+def permitted_document_ids(user):
+    """
+    Return a Subquery of permitted, non-deleted document IDs for the user.
+    Used to avoid repeated joins to the Document table in count annotations.
+    """
+    if user is None or not getattr(user, "is_authenticated", False):
+        return Document.objects.none().values_list("id")
+    qs = get_objects_for_user_owner_aware(
+        user,
+        "documents.view_document",
+        Document,
+    ).filter(deleted_at__isnull=True)
+    return qs.values_list("id")
+
+
+def get_objects_for_user_owner_aware(
+    user,
+    perms,
+    Model,
+    *,
+    include_deleted=False,
+) -> QuerySet:
+    """
+    Returns objects the user owns, are unowned, or has explicit perms.
+    When include_deleted is True, soft-deleted items are also included.
+    """
+    manager = (
+        Model.global_objects
+        if include_deleted and hasattr(Model, "global_objects")
+        else Model.objects
+    )
+
+    objects_owned = manager.filter(owner=user)
+    objects_unowned = manager.filter(owner__isnull=True)
     objects_with_perms = get_objects_for_user(
         user=user,
         perms=perms,
-        klass=Model,
+        klass=manager.all(),
         accept_global_perms=False,
     )
     return objects_owned | objects_unowned | objects_with_perms

src/documents/serialisers.py

@@ -23,6 +23,8 @@ from django.core.validators import MinValueValidator
 from django.core.validators import RegexValidator
 from django.core.validators import integer_validator
 from django.db.models import Count
+from django.db.models import Q
+from django.db.models import Subquery
 from django.db.models.functions import Lower
 from django.utils.crypto import get_random_string
 from django.utils.dateparse import parse_datetime
@@ -70,8 +72,9 @@ from documents.models import WorkflowActionEmail
 from documents.models import WorkflowActionWebhook
 from documents.models import WorkflowTrigger
 from documents.parsers import is_mime_type_supported
-from documents.permissions import get_document_count_filter_for_user
 from documents.permissions import get_groups_with_only_permission
+from documents.permissions import get_objects_for_user_owner_aware
+from documents.permissions import permitted_document_ids
 from documents.permissions import set_permissions_for_object
 from documents.regex import validate_regex_pattern
 from documents.templating.filepath import validate_filepath_template_and_render
@@ -82,6 +85,9 @@ from documents.validators import url_validator
 if TYPE_CHECKING:
     from collections.abc import Iterable
 
+    from django.db.models.query import QuerySet
+
+
 logger = logging.getLogger("paperless.serializers")
 
 
@@ -584,18 +590,41 @@ class TagSerializer(MatchingModelSerializer, OwnedObjectSerializer):
         if children_map is not None:
             children = children_map.get(obj.pk, [])
         else:
-            filter_q = self.context.get("document_count_filter")
             request = self.context.get("request")
-            if filter_q is None:
-                user = getattr(request, "user", None) if request else None
-                filter_q = get_document_count_filter_for_user(user)
-                self.context["document_count_filter"] = filter_q
+            user = getattr(request, "user", None) if request else None
 
-            children = (
-                obj.get_children_queryset()
-                .select_related("owner")
-                .annotate(document_count=Count("documents", filter=filter_q))
-            )
+            filter_kind = self.context.get("document_count_filter")
+            if filter_kind is None:
+                filter_kind = (
+                    "superuser"
+                    if user and getattr(user, "is_superuser", False)
+                    else "restricted"
+                )
+                self.context["document_count_filter"] = filter_kind
+
+            queryset = obj.get_children_queryset().select_related("owner")
+
+            if filter_kind == "superuser":
+                children = queryset.annotate(
+                    document_count=Count(
+                        "documents",
+                        filter=Q(documents__deleted_at__isnull=True),
+                        distinct=True,
+                    ),
+                )
+            else:
+                permitted_ids = Subquery(permitted_document_ids(user))
+                counts = dict(
+                    Tag.documents.through.objects.filter(
+                        document_id__in=permitted_ids,
+                    )
+                    .values("tag_id")
+                    .annotate(c=Count("document_id"))
+                    .values_list("tag_id", "c"),
+                )
+                children = list(queryset)
+                for child in children:
+                    child.document_count = counts.get(child.id, 0)
 
             view = self.context.get("view")
             ordering = (
@@ -604,7 +633,11 @@ class TagSerializer(MatchingModelSerializer, OwnedObjectSerializer):
                 else None
             )
             ordering = ordering or (Lower("name"),)
-            children = children.order_by(*ordering)
+            if hasattr(children, "order_by"):
+                children = children.order_by(*ordering)
+            else:
+                # children is a list (pre-fetched); apply basic ordering on name
+                children = sorted(children, key=lambda c: (c.name or "").lower())
 
         serializer = TagSerializer(
             children,
@@ -1014,6 +1047,32 @@ class NotesSerializer(serializers.ModelSerializer):
         return ret
 
 
+def _get_viewable_duplicates(
+    document: Document,
+    user: User | None,
+) -> QuerySet[Document]:
+    checksums = {document.checksum}
+    if document.archive_checksum:
+        checksums.add(document.archive_checksum)
+    duplicates = Document.global_objects.filter(
+        Q(checksum__in=checksums) | Q(archive_checksum__in=checksums),
+    ).exclude(pk=document.pk)
+    duplicates = duplicates.order_by("-created")
+    allowed = get_objects_for_user_owner_aware(
+        user,
+        "documents.view_document",
+        Document,
+        include_deleted=True,
+    )
+    return duplicates.filter(id__in=allowed)
+
+
+class DuplicateDocumentSummarySerializer(serializers.Serializer):
+    id = serializers.IntegerField()
+    title = serializers.CharField()
+    deleted_at = serializers.DateTimeField(allow_null=True)
+
+
 @extend_schema_serializer(
     deprecate_fields=["created_date"],
 )
@@ -1031,6 +1090,7 @@ class DocumentSerializer(
     archived_file_name = SerializerMethodField()
     created_date = serializers.DateField(required=False)
     page_count = SerializerMethodField()
+    duplicate_documents = SerializerMethodField()
 
     notes = NotesSerializer(many=True, required=False, read_only=True)
 
@@ -1056,6 +1116,16 @@ class DocumentSerializer(
     def get_page_count(self, obj) -> int | None:
         return obj.page_count
 
+    @extend_schema_field(DuplicateDocumentSummarySerializer(many=True))
+    def get_duplicate_documents(self, obj):
+        view = self.context.get("view")
+        if view and getattr(view, "action", None) != "retrieve":
+            return []
+        request = self.context.get("request")
+        user = request.user if request else None
+        duplicates = _get_viewable_duplicates(obj, user)
+        return list(duplicates.values("id", "title", "deleted_at"))
+
     def get_original_file_name(self, obj) -> str | None:
         return obj.original_filename
 
@@ -1233,6 +1303,7 @@ class DocumentSerializer(
             "archive_serial_number",
             "original_file_name",
             "archived_file_name",
+            "duplicate_documents",
             "owner",
             "permissions",
             "user_can_change",
@@ -2094,10 +2165,12 @@ class TasksViewSerializer(OwnedObjectSerializer):
             "result",
             "acknowledged",
             "related_document",
+            "duplicate_documents",
             "owner",
         )
 
     related_document = serializers.SerializerMethodField()
+    duplicate_documents = serializers.SerializerMethodField()
     created_doc_re = re.compile(r"New document id (\d+) created")
     duplicate_doc_re = re.compile(r"It is a duplicate of .* \(#(\d+)\)")
 
@@ -2122,6 +2195,17 @@ class TasksViewSerializer(OwnedObjectSerializer):
 
         return result
 
+    @extend_schema_field(DuplicateDocumentSummarySerializer(many=True))
+    def get_duplicate_documents(self, obj):
+        related_document = self.get_related_document(obj)
+        request = self.context.get("request")
+        user = request.user if request else None
+        document = Document.global_objects.filter(pk=related_document).first()
+        if not related_document or not user or not document:
+            return []
+        duplicates = _get_viewable_duplicates(document, user)
+        return list(duplicates.values("id", "title", "deleted_at"))
+
 
 class RunTaskViewSerializer(serializers.Serializer):
     task_name = serializers.ChoiceField(

src/documents/tests/test_api_documents.py

@@ -131,6 +131,10 @@ class TestDocumentApi(DirectoriesMixin, DocumentConsumeDelayMixin, APITestCase):
         self.assertIn("content", results_full[0])
         self.assertIn("id", results_full[0])
 
+        # Content length is used internally for performance reasons.
+        # No need to expose this field.
+        self.assertNotIn("content_length", results_full[0])
+
         response = self.client.get("/api/documents/?fields=id", format="json")
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         results = response.data["results"]

src/documents/tests/test_api_tasks.py

@@ -7,6 +7,7 @@ from django.contrib.auth.models import User
 from rest_framework import status
 from rest_framework.test import APITestCase
 
+from documents.models import Document
 from documents.models import PaperlessTask
 from documents.tests.utils import DirectoriesMixin
 from documents.views import TasksViewSet
@@ -258,7 +259,7 @@ class TestTasks(DirectoriesMixin, APITestCase):
             task_id=str(uuid.uuid4()),
             task_file_name="task_one.pdf",
             status=celery.states.FAILURE,
-            result="test.pdf: Not consuming test.pdf: It is a duplicate.",
+            result="test.pdf: Unexpected error during ingestion.",
         )
 
         response = self.client.get(self.ENDPOINT)
@@ -270,7 +271,7 @@ class TestTasks(DirectoriesMixin, APITestCase):
 
         self.assertEqual(
             returned_data["result"],
-            "test.pdf: Not consuming test.pdf: It is a duplicate.",
+            "test.pdf: Unexpected error during ingestion.",
         )
 
     def test_task_name_webui(self):
@@ -325,20 +326,34 @@ class TestTasks(DirectoriesMixin, APITestCase):
 
         self.assertEqual(returned_data["task_file_name"], "anothertest.pdf")
 
-    def test_task_result_failed_duplicate_includes_related_doc(self):
+    def test_task_result_duplicate_warning_includes_count(self):
         """
         GIVEN:
-            - A celery task failed with a duplicate error
+            - A celery task succeeds, but a duplicate exists
         WHEN:
             - API call is made to get tasks
         THEN:
-            - The returned data includes a related document link
+            - The returned data includes duplicate warning metadata
         """
+        checksum = "duplicate-checksum"
+        Document.objects.create(
+            title="Existing",
+            content="",
+            mime_type="application/pdf",
+            checksum=checksum,
+        )
+        created_doc = Document.objects.create(
+            title="Created",
+            content="",
+            mime_type="application/pdf",
+            checksum=checksum,
+            archive_checksum="another-checksum",
+        )
         PaperlessTask.objects.create(
             task_id=str(uuid.uuid4()),
             task_file_name="task_one.pdf",
-            status=celery.states.FAILURE,
-            result="Not consuming task_one.pdf: It is a duplicate of task_one_existing.pdf (#1234).",
+            status=celery.states.SUCCESS,
+            result=f"Success. New document id {created_doc.pk} created",
         )
 
         response = self.client.get(self.ENDPOINT)
@@ -348,7 +363,7 @@ class TestTasks(DirectoriesMixin, APITestCase):
 
         returned_data = response.data[0]
 
-        self.assertEqual(returned_data["related_document"], "1234")
+        self.assertEqual(returned_data["related_document"], str(created_doc.pk))
 
     def test_run_train_classifier_task(self):
         """

src/documents/tests/test_consumer.py

@@ -485,21 +485,21 @@ class TestConsumer(
         with self.get_consumer(self.get_test_file()) as consumer:
             consumer.run()
 
-        with self.assertRaisesMessage(ConsumerError, "It is a duplicate"):
-            with self.get_consumer(self.get_test_file()) as consumer:
-                consumer.run()
+        with self.get_consumer(self.get_test_file()) as consumer:
+            consumer.run()
 
-        self._assert_first_last_send_progress(last_status="FAILED")
+        self.assertEqual(Document.objects.count(), 2)
+        self._assert_first_last_send_progress()
 
     def testDuplicates2(self):
         with self.get_consumer(self.get_test_file()) as consumer:
             consumer.run()
 
-        with self.assertRaisesMessage(ConsumerError, "It is a duplicate"):
-            with self.get_consumer(self.get_test_archive_file()) as consumer:
-                consumer.run()
+        with self.get_consumer(self.get_test_archive_file()) as consumer:
+            consumer.run()
 
-        self._assert_first_last_send_progress(last_status="FAILED")
+        self.assertEqual(Document.objects.count(), 2)
+        self._assert_first_last_send_progress()
 
     def testDuplicates3(self):
         with self.get_consumer(self.get_test_archive_file()) as consumer:
@@ -513,9 +513,10 @@ class TestConsumer(
 
         Document.objects.all().delete()
 
-        with self.assertRaisesMessage(ConsumerError, "document is in the trash"):
-            with self.get_consumer(self.get_test_file()) as consumer:
-                consumer.run()
+        with self.get_consumer(self.get_test_file()) as consumer:
+            consumer.run()
+
+        self.assertEqual(Document.objects.count(), 1)
 
     def testAsnExists(self):
         with self.get_consumer(
@@ -718,12 +719,45 @@ class TestConsumer(
         dst = self.get_test_file()
         self.assertIsFile(dst)
 
-        with self.assertRaises(ConsumerError):
+        expected_message = (
+            f"{dst.name}: Not consuming {dst.name}: "
+            f"It is a duplicate of {document.title} (#{document.pk})"
+        )
+
+        with self.assertRaisesMessage(ConsumerError, expected_message):
             with self.get_consumer(dst) as consumer:
                 consumer.run()
 
         self.assertIsNotFile(dst)
-        self._assert_first_last_send_progress(last_status="FAILED")
+        self.assertEqual(Document.objects.count(), 1)
+        self._assert_first_last_send_progress(last_status=ProgressStatusOptions.FAILED)
+
+    @override_settings(CONSUMER_DELETE_DUPLICATES=True)
+    def test_delete_duplicate_in_trash(self):
+        dst = self.get_test_file()
+        with self.get_consumer(dst) as consumer:
+            consumer.run()
+
+        # Move the existing document to trash
+        document = Document.objects.first()
+        document.delete()
+
+        dst = self.get_test_file()
+        self.assertIsFile(dst)
+
+        expected_message = (
+            f"{dst.name}: Not consuming {dst.name}: "
+            f"It is a duplicate of {document.title} (#{document.pk})"
+            f" Note: existing document is in the trash."
+        )
+
+        with self.assertRaisesMessage(ConsumerError, expected_message):
+            with self.get_consumer(dst) as consumer:
+                consumer.run()
+
+        self.assertIsNotFile(dst)
+        self.assertEqual(Document.global_objects.count(), 1)
+        self.assertEqual(Document.objects.count(), 0)
 
     @override_settings(CONSUMER_DELETE_DUPLICATES=False)
     def test_no_delete_duplicate(self):
@@ -743,15 +777,12 @@ class TestConsumer(
         dst = self.get_test_file()
         self.assertIsFile(dst)
 
-        with self.assertRaisesRegex(
-            ConsumerError,
-            r"sample\.pdf: Not consuming sample\.pdf: It is a duplicate of sample \(#\d+\)",
-        ):
-            with self.get_consumer(dst) as consumer:
-                consumer.run()
+        with self.get_consumer(dst) as consumer:
+            consumer.run()
 
-        self.assertIsFile(dst)
-        self._assert_first_last_send_progress(last_status="FAILED")
+        self.assertIsNotFile(dst)
+        self.assertEqual(Document.objects.count(), 2)
+        self._assert_first_last_send_progress()
 
     @override_settings(FILENAME_FORMAT="{title}")
     @mock.patch("documents.parsers.document_consumer_declaration.send")

src/documents/tests/test_index.py

@@ -180,7 +180,7 @@ class TestRewriteNaturalDateKeywords(SimpleTestCase):
             (
                 "added:this year",
                 datetime(2025, 7, 15, 12, 0, 0, tzinfo=timezone.utc),
-                ("added:[20250101", "TO 20250715"),
+                ("added:[20250101", "TO 20251231"),
             ),
             (
                 "added:previous year",

src/documents/tests/test_management_exporter.py

@@ -241,6 +241,10 @@ class TestExportImport(
                     checksum = hashlib.md5(f.read()).hexdigest()
                 self.assertEqual(checksum, element["fields"]["checksum"])
 
+                # Generated field "content_length" should not be exported,
+                # it is automatically computed during import.
+                self.assertNotIn("content_length", element["fields"])
+
                 if document_exporter.EXPORTER_ARCHIVE_NAME in element:
                     fname = (
                         self.target / element[document_exporter.EXPORTER_ARCHIVE_NAME]

src/documents/views.py

@@ -33,9 +33,9 @@ from django.db.models import IntegerField
 from django.db.models import Max
 from django.db.models import Model
 from django.db.models import Q
+from django.db.models import Subquery
 from django.db.models import Sum
 from django.db.models import When
-from django.db.models.functions import Length
 from django.db.models.functions import Lower
 from django.db.models.manager import Manager
 from django.http import FileResponse
@@ -154,6 +154,7 @@ from documents.permissions import ViewDocumentsPermissions
 from documents.permissions import get_document_count_filter_for_user
 from documents.permissions import get_objects_for_user_owner_aware
 from documents.permissions import has_perms_owner_aware
+from documents.permissions import permitted_document_ids
 from documents.permissions import set_permissions_for_object
 from documents.schema import generate_object_with_permissions_schema
 from documents.serialisers import AcknowledgeTasksViewSerializer
@@ -479,11 +480,11 @@ class TagViewSet(ModelViewSet, PermissionsAwareDocumentCountMixin):
 
         if descendant_pks:
             filter_q = self.get_document_count_filter()
-            children_source = (
+            children_source = list(
                 Tag.objects.filter(pk__in=descendant_pks | {t.pk for t in all_tags})
                 .select_related("owner")
                 .annotate(document_count=Count("documents", filter=filter_q))
-                .order_by(*ordering)
+                .order_by(*ordering),
             )
         else:
             children_source = all_tags
@@ -495,7 +496,11 @@ class TagViewSet(ModelViewSet, PermissionsAwareDocumentCountMixin):
 
         page = self.paginate_queryset(queryset)
         serializer = self.get_serializer(page, many=True)
-        return self.get_paginated_response(serializer.data)
+        response = self.get_paginated_response(serializer.data)
+        if descendant_pks:
+            # Include children in the "all" field, if needed
+            response.data["all"] = [tag.pk for tag in children_source]
+        return response
 
     def perform_update(self, serializer):
         old_parent = self.get_object().get_parent()
@@ -2322,23 +2327,19 @@ class StatisticsView(GenericAPIView):
         user = request.user if request.user is not None else None
 
         documents = (
-            (
-                Document.objects.all()
-                if user is None
-                else get_objects_for_user_owner_aware(
-                    user,
-                    "documents.view_document",
-                    Document,
-                )
+            Document.objects.all()
+            if user is None
+            else get_objects_for_user_owner_aware(
+                user,
+                "documents.view_document",
+                Document,
             )
-            .only("mime_type", "content")
-            .prefetch_related("tags")
         )
         tags = (
             Tag.objects.all()
             if user is None
             else get_objects_for_user_owner_aware(user, "documents.view_tag", Tag)
-        )
+        ).only("id", "is_inbox_tag")
         correspondent_count = (
             Correspondent.objects.count()
             if user is None
@@ -2367,31 +2368,33 @@ class StatisticsView(GenericAPIView):
             ).count()
         )
 
-        documents_total = documents.count()
-
-        inbox_tags = tags.filter(is_inbox_tag=True)
+        inbox_tag_pks = list(
+            tags.filter(is_inbox_tag=True).values_list("pk", flat=True),
+        )
 
         documents_inbox = (
-            documents.filter(tags__id__in=inbox_tags).distinct().count()
-            if inbox_tags.exists()
+            documents.filter(tags__id__in=inbox_tag_pks).values("id").distinct().count()
+            if inbox_tag_pks
             else None
         )
 
-        document_file_type_counts = (
+        # Single SQL request for document stats and mime type counts
+        mime_type_stats = list(
             documents.values("mime_type")
-            .annotate(mime_type_count=Count("mime_type"))
-            .order_by("-mime_type_count")
-            if documents_total > 0
-            else []
+            .annotate(
+                mime_type_count=Count("id"),
+                mime_type_chars=Sum("content_length"),
+            )
+            .order_by("-mime_type_count"),
         )
 
-        character_count = (
-            documents.annotate(
-                characters=Length("content"),
-            )
-            .aggregate(Sum("characters"))
-            .get("characters__sum")
-        )
+        # Calculate totals from grouped results
+        documents_total = sum(row["mime_type_count"] for row in mime_type_stats)
+        character_count = sum(row["mime_type_chars"] or 0 for row in mime_type_stats)
+        document_file_type_counts = [
+            {"mime_type": row["mime_type"], "mime_type_count": row["mime_type_count"]}
+            for row in mime_type_stats
+        ]
 
         current_asn = Document.objects.aggregate(
             Max("archive_serial_number", default=0),
@@ -2404,11 +2407,9 @@ class StatisticsView(GenericAPIView):
                 "documents_total": documents_total,
                 "documents_inbox": documents_inbox,
                 "inbox_tag": (
-                    inbox_tags.first().pk if inbox_tags.exists() else None
+                    inbox_tag_pks[0] if inbox_tag_pks else None
                 ),  # backwards compatibility
-                "inbox_tags": (
-                    [tag.pk for tag in inbox_tags] if inbox_tags.exists() else None
-                ),
+                "inbox_tags": (inbox_tag_pks if inbox_tag_pks else None),
                 "document_file_type_counts": document_file_type_counts,
                 "character_count": character_count,
                 "tag_count": len(tags),
@@ -3008,27 +3009,32 @@ class CustomFieldViewSet(ModelViewSet):
     queryset = CustomField.objects.all().order_by("-created")
 
     def get_queryset(self):
-        filter = (
-            Q(fields__document__deleted_at__isnull=True)
-            if self.request.user is None or self.request.user.is_superuser
-            else (
-                Q(
-                    fields__document__deleted_at__isnull=True,
-                    fields__document__id__in=get_objects_for_user_owner_aware(
-                        self.request.user,
-                        "documents.view_document",
-                        Document,
-                    ).values_list("id", flat=True),
+        user = self.request.user
+        if user is None or user.is_superuser:
+            return (
+                super()
+                .get_queryset()
+                .annotate(
+                    document_count=Count(
+                        "fields",
+                        filter=Q(fields__document__deleted_at__isnull=True),
+                        distinct=True,
+                    ),
                 )
             )
-        )
+
+        permitted_ids = Subquery(permitted_document_ids(user))
         return (
             super()
             .get_queryset()
             .annotate(
                 document_count=Count(
                     "fields",
-                    filter=filter,
+                    filter=Q(
+                        fields__document__deleted_at__isnull=True,
+                        fields__document_id__in=permitted_ids,
+                    ),
+                    distinct=True,
                 ),
             )
         )

src/paperless/adapter.py

@@ -3,12 +3,15 @@ from urllib.parse import quote
 
 from allauth.account.adapter import DefaultAccountAdapter
 from allauth.core import context
+from allauth.headless.tokens.sessions import SessionTokenStrategy
 from allauth.socialaccount.adapter import DefaultSocialAccountAdapter
 from django.conf import settings
 from django.contrib.auth.models import Group
 from django.contrib.auth.models import User
 from django.forms import ValidationError
+from django.http import HttpRequest
 from django.urls import reverse
+from rest_framework.authtoken.models import Token
 
 from documents.models import Document
 from paperless.signals import handle_social_account_updated
@@ -159,3 +162,11 @@ class CustomSocialAccountAdapter(DefaultSocialAccountAdapter):
             exception,
             extra_context,
         )
+
+
+class DrfTokenStrategy(SessionTokenStrategy):
+    def create_access_token(self, request: HttpRequest) -> str | None:
+        if not request.user.is_authenticated:
+            return None
+        token, _ = Token.objects.get_or_create(user=request.user)
+        return token.key

src/paperless/settings.py

@@ -345,6 +345,7 @@ INSTALLED_APPS = [
     "allauth.account",
     "allauth.socialaccount",
     "allauth.mfa",
+    "allauth.headless",
     "drf_spectacular",
     "drf_spectacular_sidecar",
     "treenode",
@@ -539,6 +540,12 @@ SOCIALACCOUNT_PROVIDERS = json.loads(
 )
 SOCIAL_ACCOUNT_DEFAULT_GROUPS = __get_list("PAPERLESS_SOCIAL_ACCOUNT_DEFAULT_GROUPS")
 SOCIAL_ACCOUNT_SYNC_GROUPS = __get_boolean("PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS")
+SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM: Final[str] = os.getenv(
+    "PAPERLESS_SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM",
+    "groups",
+)
+
+HEADLESS_TOKEN_STRATEGY = "paperless.adapter.DrfTokenStrategy"
 
 MFA_TOTP_ISSUER = "Paperless-ngx"
 

src/paperless/signals.py

@@ -40,15 +40,19 @@ def handle_social_account_updated(sender, request, sociallogin, **kwargs):
 
     extra_data = sociallogin.account.extra_data or {}
     social_account_groups = extra_data.get(
-        "groups",
+        settings.SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM,
         [],
     )  # pre-allauth 65.11.0 structure
 
     if not social_account_groups:
         # allauth 65.11.0+ nests claims under `userinfo`/`id_token`
         social_account_groups = (
-            extra_data.get("userinfo", {}).get("groups")
-            or extra_data.get("id_token", {}).get("groups")
+            extra_data.get("userinfo", {}).get(
+                settings.SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM,
+            )
+            or extra_data.get("id_token", {}).get(
+                settings.SOCIAL_ACCOUNT_SYNC_GROUPS_CLAIM,
+            )
             or []
         )
     if settings.SOCIAL_ACCOUNT_SYNC_GROUPS and social_account_groups is not None:

src/paperless/tests/test_adapter.py

@@ -4,6 +4,7 @@ from allauth.account.adapter import get_adapter
 from allauth.core import context
 from allauth.socialaccount.adapter import get_adapter as get_social_adapter
 from django.conf import settings
+from django.contrib.auth.models import AnonymousUser
 from django.contrib.auth.models import Group
 from django.contrib.auth.models import User
 from django.forms import ValidationError
@@ -11,6 +12,9 @@ from django.http import HttpRequest
 from django.test import TestCase
 from django.test import override_settings
 from django.urls import reverse
+from rest_framework.authtoken.models import Token
+
+from paperless.adapter import DrfTokenStrategy
 
 
 class TestCustomAccountAdapter(TestCase):
@@ -181,3 +185,74 @@ class TestCustomSocialAccountAdapter(TestCase):
         self.assertTrue(
             any("Test authentication error" in message for message in log_cm.output),
         )
+
+
+class TestDrfTokenStrategy(TestCase):
+    def test_create_access_token_creates_new_token(self):
+        """
+        GIVEN:
+            - A user with no existing DRF token
+        WHEN:
+            - create_access_token is called
+        THEN:
+            - A new token is created and its key is returned
+        """
+
+        user = User.objects.create_user("testuser")
+        request = HttpRequest()
+        request.user = user
+
+        strategy = DrfTokenStrategy()
+        token_key = strategy.create_access_token(request)
+
+        # Verify a token was created
+        self.assertIsNotNone(token_key)
+        self.assertTrue(Token.objects.filter(user=user).exists())
+
+        # Verify the returned key matches the created token
+        token = Token.objects.get(user=user)
+        self.assertEqual(token_key, token.key)
+
+    def test_create_access_token_returns_existing_token(self):
+        """
+        GIVEN:
+            - A user with an existing DRF token
+        WHEN:
+            - create_access_token is called again
+        THEN:
+            - The same token key is returned (no new token created)
+        """
+
+        user = User.objects.create_user("testuser")
+        existing_token = Token.objects.create(user=user)
+
+        request = HttpRequest()
+        request.user = user
+
+        strategy = DrfTokenStrategy()
+        token_key = strategy.create_access_token(request)
+
+        # Verify the existing token key is returned
+        self.assertEqual(token_key, existing_token.key)
+
+        # Verify only one token exists (no duplicate created)
+        self.assertEqual(Token.objects.filter(user=user).count(), 1)
+
+    def test_create_access_token_returns_none_for_unauthenticated_user(self):
+        """
+        GIVEN:
+            - An unauthenticated request
+        WHEN:
+            - create_access_token is called
+        THEN:
+            - None is returned and no token is created
+        """
+
+        request = HttpRequest()
+        request.user = AnonymousUser()
+
+        strategy = DrfTokenStrategy()
+        token_key = strategy.create_access_token(request)
+
+        self.assertIsNone(token_key)
+        self.assertEqual(Token.objects.count(), 0)

src/paperless/urls.py

@@ -228,6 +228,7 @@ urlpatterns = [
                         ],
                     ),
                 ),
+                re_path("^auth/headless/", include("allauth.headless.urls")),
                 re_path(
                     "^$",  # Redirect to the API swagger view
                     RedirectView.as_view(url="schema/view/"),