Add hint for plain text password storage

Added a test for the remove_password function to ensure it deletes the original document when specified.

docs/api.md

@@ -294,6 +294,13 @@ The following methods are supported:
         -   `"delete_original": true` to delete the original documents after editing.
         -   `"update_document": true` to update the existing document with the edited PDF.
         -   `"include_metadata": true` to copy metadata from the original document to the edited document.
+-   `remove_password`
+    -   Requires `parameters`:
+        -   `"password": "PASSWORD_STRING"` The password to remove from the PDF documents.
+    -   Optional `parameters`:
+        -   `"update_document": true` to replace the existing document with the password-less PDF.
+        -   `"delete_original": true` to delete the original document after editing.
+        -   `"include_metadata": true` to copy metadata from the original document to the new password-less document.
 -   `merge`
     -   No additional `parameters` required.
     -   The ordering of the merged document is determined by the list of IDs.

src-ui/src/app/components/common/confirm-dialog/password-removal-confirm-dialog/password-removal-confirm-dialog.component.html

@@ -0,0 +1,75 @@
+<div class="modal-header">
+  <h4 class="modal-title" id="modal-basic-title">{{title}}</h4>
+  <button type="button" class="btn-close" aria-label="Close" (click)="cancel()">
+  </button>
+</div>
+<div class="modal-body">
+  @if (message) {
+    <p class="mb-3" [innerHTML]="message"></p>
+  }
+  <div class="btn-group mb-3" role="group">
+    <input
+      type="radio"
+      class="btn-check"
+      name="passwordRemoveMode"
+      id="removeReplace"
+      [(ngModel)]="updateDocument"
+      [value]="true"
+      (ngModelChange)="onUpdateDocumentChange($event)"
+    />
+    <label class="btn btn-outline-primary btn-sm" for="removeReplace">
+      <i-bs name="pencil"></i-bs>
+      <span class="ms-2" i18n>Replace current document</span>
+    </label>
+    <input
+      type="radio"
+      class="btn-check"
+      name="passwordRemoveMode"
+      id="removeCreate"
+      [(ngModel)]="updateDocument"
+      [value]="false"
+      (ngModelChange)="onUpdateDocumentChange($event)"
+    />
+    <label class="btn btn-outline-primary btn-sm" for="removeCreate">
+      <i-bs name="plus"></i-bs>
+      <span class="ms-2" i18n>Create new document</span>
+    </label>
+  </div>
+  @if (!updateDocument) {
+    <div class="d-flex flex-column flex-md-row w-100 gap-3 align-items-center">
+      <div class="form-group d-flex">
+        <div class="form-check">
+          <input class="form-check-input" type="checkbox" id="copyMetaRemove" [(ngModel)]="includeMetadata" />
+          <label class="form-check-label" for="copyMetaRemove" i18n> Copy metadata
+          </label>
+        </div>
+        <div class="form-check ms-3">
+          <input class="form-check-input" type="checkbox" id="deleteOriginalRemove" [(ngModel)]="deleteOriginal" />
+          <label class="form-check-label" for="deleteOriginalRemove" i18n> Delete original</label>
+        </div>
+      </div>
+    </div>
+  }
+</div>
+<div class="modal-footer flex-nowrap gap-2">
+  <button
+    type="button"
+    class="btn"
+    [class]="cancelBtnClass"
+    (click)="cancel()"
+    [disabled]="!buttonsEnabled"
+  >
+    <span class="d-inline-block" style="padding-bottom: 1px;">
+      {{cancelBtnCaption}}
+    </span>
+  </button>
+  <button
+    type="button"
+    class="btn"
+    [class]="btnClass"
+    (click)="confirm()"
+    [disabled]="!confirmButtonEnabled || !buttonsEnabled"
+  >
+    {{btnCaption}}
+  </button>
+</div>

src-ui/src/app/components/common/confirm-dialog/password-removal-confirm-dialog/password-removal-confirm-dialog.component.spec.ts

@@ -0,0 +1,53 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing'
+import { By } from '@angular/platform-browser'
+import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap'
+import { NgxBootstrapIconsModule, allIcons } from 'ngx-bootstrap-icons'
+import { PasswordRemovalConfirmDialogComponent } from './password-removal-confirm-dialog.component'
+
+describe('PasswordRemovalConfirmDialogComponent', () => {
+  let component: PasswordRemovalConfirmDialogComponent
+  let fixture: ComponentFixture<PasswordRemovalConfirmDialogComponent>
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      providers: [NgbActiveModal],
+      imports: [
+        NgxBootstrapIconsModule.pick(allIcons),
+        PasswordRemovalConfirmDialogComponent,
+      ],
+    }).compileComponents()
+
+    fixture = TestBed.createComponent(PasswordRemovalConfirmDialogComponent)
+    component = fixture.componentInstance
+    fixture.detectChanges()
+  })
+
+  it('should default to replacing the document', () => {
+    expect(component.updateDocument).toBe(true)
+    expect(
+      fixture.debugElement.query(By.css('#removeReplace')).nativeElement.checked
+    ).toBe(true)
+  })
+
+  it('should allow creating a new document with metadata and delete toggle', () => {
+    component.onUpdateDocumentChange(false)
+    fixture.detectChanges()
+
+    expect(component.updateDocument).toBe(false)
+    expect(fixture.debugElement.query(By.css('#copyMetaRemove'))).not.toBeNull()
+
+    component.includeMetadata = false
+    component.deleteOriginal = true
+    component.onUpdateDocumentChange(true)
+    expect(component.updateDocument).toBe(true)
+    expect(component.includeMetadata).toBe(true)
+    expect(component.deleteOriginal).toBe(false)
+  })
+
+  it('should emit confirm when confirmed', () => {
+    let confirmed = false
+    component.confirmClicked.subscribe(() => (confirmed = true))
+    component.confirm()
+    expect(confirmed).toBe(true)
+  })
+})

src-ui/src/app/components/common/confirm-dialog/password-removal-confirm-dialog/password-removal-confirm-dialog.component.ts

@@ -0,0 +1,38 @@
+import { Component, Input } from '@angular/core'
+import { FormsModule } from '@angular/forms'
+import { NgxBootstrapIconsModule } from 'ngx-bootstrap-icons'
+import { ConfirmDialogComponent } from '../confirm-dialog.component'
+
+@Component({
+  selector: 'pngx-password-removal-confirm-dialog',
+  templateUrl: './password-removal-confirm-dialog.component.html',
+  styleUrls: ['./password-removal-confirm-dialog.component.scss'],
+  imports: [FormsModule, NgxBootstrapIconsModule],
+})
+export class PasswordRemovalConfirmDialogComponent extends ConfirmDialogComponent {
+  updateDocument: boolean = true
+  includeMetadata: boolean = true
+  deleteOriginal: boolean = false
+
+  @Input()
+  override title = $localize`Remove password protection`
+
+  @Input()
+  override message =
+    $localize`Create an unprotected copy or replace the existing file.`
+
+  @Input()
+  override btnCaption = $localize`Start`
+
+  constructor() {
+    super()
+  }
+
+  onUpdateDocumentChange(updateDocument: boolean) {
+    this.updateDocument = updateDocument
+    if (this.updateDocument) {
+      this.deleteOriginal = false
+      this.includeMetadata = true
+    }
+  }
+}

src-ui/src/app/components/common/edit-dialog/workflow-edit-dialog/workflow-edit-dialog.component.html

@@ -430,6 +430,24 @@
           </div>
         </div>
       }
+      @case (WorkflowActionType.PasswordRemoval) {
+        <div class="row">
+          <div class="col">
+            <p class="small" i18n>
+              One or more passwords separated by commas or new lines. The workflow will try them in order until one succeeds.
+            </p>
+            <pngx-input-textarea
+              i18n-title
+              title="Passwords"
+              formControlName="passwords"
+              rows="4"
+              [error]="error?.actions?.[i]?.passwords"
+              hint="Passwords are stored in plain text. Use with caution."
+              i18n-hint
+            ></pngx-input-textarea>
+          </div>
+        </div>
+      }
     }
   </div>
 </ng-template>

src-ui/src/app/components/common/edit-dialog/workflow-edit-dialog/workflow-edit-dialog.component.ts

@@ -139,6 +139,10 @@ export const WORKFLOW_ACTION_OPTIONS = [
     id: WorkflowActionType.Webhook,
     name: $localize`Webhook`,
   },
+  {
+    id: WorkflowActionType.PasswordRemoval,
+    name: $localize`Password removal`,
+  },
 ]
 
 export enum TriggerFilterType {
@@ -1133,6 +1137,7 @@ export class WorkflowEditDialogComponent
           headers: new FormControl(action.webhook?.headers),
           include_document: new FormControl(!!action.webhook?.include_document),
         }),
+        passwords: new FormControl(action.passwords),
       }),
       { emitEvent }
     )

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

@@ -65,6 +65,12 @@
       <button ngbDropdownItem (click)="editPdf()" [disabled]="!userIsOwner || !userCanEdit || originalContentRenderType !== ContentRenderType.PDF">
         <i-bs name="pencil"></i-bs>&nbsp;<ng-container i18n>PDF Editor</ng-container>
       </button>
+
+      @if (userIsOwner && (requiresPassword || password)) {
+        <button ngbDropdownItem (click)="removePassword()" [disabled]="!password">
+          <i-bs name="unlock"></i-bs>&nbsp;<ng-container i18n>Remove Password</ng-container>
+        </button>
+      }
     </div>
   </div>
 

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

@@ -66,6 +66,7 @@ import { SettingsService } from 'src/app/services/settings.service'
 import { ToastService } from 'src/app/services/toast.service'
 import { environment } from 'src/environments/environment'
 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'
 import {
   DocumentDetailComponent,
@@ -1209,6 +1210,88 @@ describe('DocumentDetailComponent', () => {
     expect(closeSpy).toHaveBeenCalled()
   })
 
+  it('should support removing password protection from pdfs', () => {
+    let modal: NgbModalRef
+    modalService.activeInstances.subscribe((m) => (modal = m[0]))
+    initNormally()
+    component.password = 'secret'
+    component.removePassword()
+    const dialog =
+      modal.componentInstance as PasswordRemovalConfirmDialogComponent
+    dialog.updateDocument = false
+    dialog.includeMetadata = false
+    dialog.deleteOriginal = true
+    dialog.confirm()
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}documents/bulk_edit/`
+    )
+    expect(req.request.body).toEqual({
+      documents: [doc.id],
+      method: 'remove_password',
+      parameters: {
+        password: 'secret',
+        update_document: false,
+        include_metadata: false,
+        delete_original: true,
+      },
+    })
+    req.flush(true)
+  })
+
+  it('should require the current password before removing it', () => {
+    initNormally()
+    const errorSpy = jest.spyOn(toastService, 'showError')
+    component.requiresPassword = true
+    component.password = ''
+
+    component.removePassword()
+
+    expect(errorSpy).toHaveBeenCalled()
+    httpTestingController.expectNone(
+      `${environment.apiBaseUrl}documents/bulk_edit/`
+    )
+  })
+
+  it('should handle failures when removing password protection', () => {
+    let modal: NgbModalRef
+    modalService.activeInstances.subscribe((m) => (modal = m[0]))
+    initNormally()
+    const errorSpy = jest.spyOn(toastService, 'showError')
+    component.password = 'secret'
+
+    component.removePassword()
+    const dialog =
+      modal.componentInstance as PasswordRemovalConfirmDialogComponent
+    dialog.confirm()
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}documents/bulk_edit/`
+    )
+    req.error(new ErrorEvent('failed'))
+
+    expect(errorSpy).toHaveBeenCalled()
+    expect(component.networkActive).toBe(false)
+    expect(dialog.buttonsEnabled).toBe(true)
+  })
+
+  it('should refresh the document when removing password in update mode', () => {
+    let modal: NgbModalRef
+    modalService.activeInstances.subscribe((m) => (modal = m[0]))
+    const refreshSpy = jest.spyOn(openDocumentsService, 'refreshDocument')
+    initNormally()
+    component.password = 'secret'
+
+    component.removePassword()
+    const dialog =
+      modal.componentInstance as PasswordRemovalConfirmDialogComponent
+    dialog.confirm()
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}documents/bulk_edit/`
+    )
+    req.flush(true)
+
+    expect(refreshSpy).toHaveBeenCalledWith(doc.id)
+  })
+
   it('should support keyboard shortcuts', () => {
     initNormally()
 

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

@@ -83,6 +83,7 @@ import { getFilenameFromContentDisposition } from 'src/app/utils/http'
 import { ISODateAdapter } from 'src/app/utils/ngb-iso-date-adapter'
 import * as UTIF from 'utif'
 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'
 import { CorrespondentEditDialogComponent } from '../common/edit-dialog/correspondent-edit-dialog/correspondent-edit-dialog.component'
 import { DocumentTypeEditDialogComponent } from '../common/edit-dialog/document-type-edit-dialog/document-type-edit-dialog.component'
@@ -175,6 +176,7 @@ export enum ZoomSetting {
     NgxBootstrapIconsModule,
     PdfViewerModule,
     TextAreaComponent,
+    PasswordRemovalConfirmDialogComponent,
   ],
 })
 export class DocumentDetailComponent
@@ -1428,6 +1430,63 @@ export class DocumentDetailComponent
       })
   }
 
+  removePassword() {
+    if (this.requiresPassword || !this.password) {
+      this.toastService.showError(
+        $localize`Please enter the current password before attempting to remove it.`
+      )
+      return
+    }
+    const modal = this.modalService.open(
+      PasswordRemovalConfirmDialogComponent,
+      {
+        backdrop: 'static',
+      }
+    )
+    modal.componentInstance.title = $localize`Remove password protection`
+    modal.componentInstance.message = $localize`Create an unprotected copy or replace the existing file.`
+    modal.componentInstance.btnCaption = $localize`Start`
+
+    modal.componentInstance.confirmClicked
+      .pipe(takeUntil(this.unsubscribeNotifier))
+      .subscribe(() => {
+        const dialog =
+          modal.componentInstance as PasswordRemovalConfirmDialogComponent
+        dialog.buttonsEnabled = false
+        this.networkActive = true
+        this.documentsService
+          .bulkEdit([this.document.id], 'remove_password', {
+            password: this.password,
+            update_document: dialog.updateDocument,
+            include_metadata: dialog.includeMetadata,
+            delete_original: dialog.deleteOriginal,
+          })
+          .pipe(first(), takeUntil(this.unsubscribeNotifier))
+          .subscribe({
+            next: () => {
+              this.toastService.showInfo(
+                $localize`Password removal operation for "${this.document.title}" will begin in the background.`
+              )
+              this.networkActive = false
+              modal.close()
+              if (!dialog.updateDocument && dialog.deleteOriginal) {
+                this.openDocumentService.closeDocument(this.document)
+              } else if (dialog.updateDocument) {
+                this.openDocumentService.refreshDocument(this.documentId)
+              }
+            },
+            error: (error) => {
+              dialog.buttonsEnabled = true
+              this.networkActive = false
+              this.toastService.showError(
+                $localize`Error executing password removal operation`,
+                error
+              )
+            },
+          })
+      })
+  }
+
   printDocument() {
     const printUrl = this.documentsService.getDownloadUrl(
       this.document.id,

src-ui/src/app/data/workflow-action.ts

@@ -5,6 +5,7 @@ export enum WorkflowActionType {
   Removal = 2,
   Email = 3,
   Webhook = 4,
+  PasswordRemoval = 5,
 }
 
 export interface WorkflowActionEmail extends ObjectWithId {
@@ -97,4 +98,6 @@ export interface WorkflowAction extends ObjectWithId {
   email?: WorkflowActionEmail
 
   webhook?: WorkflowActionWebhook
+
+  passwords?: string
 }

src-ui/src/main.ts

@@ -132,6 +132,7 @@ import {
   threeDotsVertical,
   trash,
   uiRadios,
+  unlock,
   upcScan,
   windowStack,
   x,
@@ -348,6 +349,7 @@ const icons = {
   threeDotsVertical,
   trash,
   uiRadios,
+  unlock,
   upcScan,
   windowStack,
   x,

src/documents/bulk_edit.py

@@ -646,6 +646,77 @@ def edit_pdf(
     return "OK"
 
 
+def remove_password(
+    doc_ids: list[int],
+    password: str,
+    *,
+    update_document: bool = False,
+    delete_original: bool = False,
+    include_metadata: bool = True,
+    user: User | None = None,
+) -> Literal["OK"]:
+    """
+    Remove password protection from PDF documents.
+    """
+    import pikepdf
+
+    for doc_id in doc_ids:
+        doc = Document.objects.get(id=doc_id)
+        try:
+            logger.info(
+                f"Attempting password removal from document {doc_ids[0]}",
+            )
+            with pikepdf.open(doc.source_path, password=password) as pdf:
+                temp_path = doc.source_path.with_suffix(".tmp.pdf")
+                pdf.remove_unreferenced_resources()
+                pdf.save(temp_path)
+
+                if update_document:
+                    # replace the original document with the unprotected one
+                    temp_path.replace(doc.source_path)
+                    doc.checksum = hashlib.md5(doc.source_path.read_bytes()).hexdigest()
+                    doc.page_count = len(pdf.pages)
+                    doc.save()
+                    update_document_content_maybe_archive_file.delay(document_id=doc.id)
+                else:
+                    consume_tasks = []
+                    overrides = (
+                        DocumentMetadataOverrides().from_document(doc)
+                        if include_metadata
+                        else DocumentMetadataOverrides()
+                    )
+                    if user is not None:
+                        overrides.owner_id = user.id
+
+                    filepath: Path = (
+                        Path(tempfile.mkdtemp(dir=settings.SCRATCH_DIR))
+                        / f"{doc.id}_unprotected.pdf"
+                    )
+                    temp_path.replace(filepath)
+                    consume_tasks.append(
+                        consume_file.s(
+                            ConsumableDocument(
+                                source=DocumentSource.ConsumeFolder,
+                                original_file=filepath,
+                            ),
+                            overrides,
+                        ),
+                    )
+
+                    if delete_original:
+                        chord(header=consume_tasks, body=delete.si([doc.id])).delay()
+                    else:
+                        group(consume_tasks).delay()
+
+        except Exception as e:
+            logger.exception(f"Error removing password from document {doc.id}: {e}")
+            raise ValueError(
+                f"An error occurred while removing the password: {e}",
+            ) from e
+
+    return "OK"
+
+
 def reflect_doclinks(
     document: Document,
     field: CustomField,

src/documents/migrations/1075_workflowaction_passwords_alter_workflowaction_type.py

@@ -0,0 +1,38 @@
+# Generated by Django 5.2.7 on 2025-12-29 03:56
+
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("documents", "1074_workflowrun_deleted_at_workflowrun_restored_at_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="workflowaction",
+            name="passwords",
+            field=models.TextField(
+                blank=True,
+                help_text="Passwords to try when removing PDF protection. Separate with commas or new lines.",
+                null=True,
+                verbose_name="passwords",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="workflowaction",
+            name="type",
+            field=models.PositiveIntegerField(
+                choices=[
+                    (1, "Assignment"),
+                    (2, "Removal"),
+                    (3, "Email"),
+                    (4, "Webhook"),
+                    (5, "Password removal"),
+                ],
+                default=1,
+                verbose_name="Workflow Action Type",
+            ),
+        ),
+    ]

src/documents/models.py

@@ -1287,6 +1287,10 @@ class WorkflowAction(models.Model):
             4,
             _("Webhook"),
         )
+        PASSWORD_REMOVAL = (
+            5,
+            _("Password removal"),
+        )
 
     type = models.PositiveIntegerField(
         _("Workflow Action Type"),
@@ -1514,6 +1518,15 @@ class WorkflowAction(models.Model):
         verbose_name=_("webhook"),
     )
 
+    passwords = models.TextField(
+        _("passwords"),
+        null=True,
+        blank=True,
+        help_text=_(
+            "Passwords to try when removing PDF protection. Separate with commas or new lines.",
+        ),
+    )
+
     class Meta:
         verbose_name = _("workflow action")
         verbose_name_plural = _("workflow actions")

src/documents/serialisers.py

@@ -1421,6 +1421,7 @@ class BulkEditSerializer(
             "split",
             "delete_pages",
             "edit_pdf",
+            "remove_password",
         ],
         label="Method",
         write_only=True,
@@ -1496,6 +1497,8 @@ class BulkEditSerializer(
             return bulk_edit.delete_pages
         elif method == "edit_pdf":
             return bulk_edit.edit_pdf
+        elif method == "remove_password":
+            return bulk_edit.remove_password
         else:  # pragma: no cover
             # This will never happen as it is handled by the ChoiceField
             raise serializers.ValidationError("Unsupported method.")
@@ -1692,6 +1695,12 @@ class BulkEditSerializer(
                         f"Page {op['page']} is out of bounds for document with {doc.page_count} pages.",
                     )
 
+    def validate_parameters_remove_password(self, parameters):
+        if "password" not in parameters:
+            raise serializers.ValidationError("password not specified")
+        if not isinstance(parameters["password"], str):
+            raise serializers.ValidationError("password must be a string")
+
     def validate(self, attrs):
         method = attrs["method"]
         parameters = attrs["parameters"]
@@ -1732,6 +1741,8 @@ class BulkEditSerializer(
                     "Edit PDF method only supports one document",
                 )
             self._validate_parameters_edit_pdf(parameters, attrs["documents"][0])
+        elif method == bulk_edit.remove_password:
+            self.validate_parameters_remove_password(parameters)
 
         return attrs
 
@@ -2429,6 +2440,7 @@ class WorkflowActionSerializer(serializers.ModelSerializer):
             "remove_change_groups",
             "email",
             "webhook",
+            "passwords",
         ]
 
     def validate(self, attrs):
@@ -2485,6 +2497,20 @@ class WorkflowActionSerializer(serializers.ModelSerializer):
                 "Webhook data is required for webhook actions",
             )
 
+        if (
+            "type" in attrs
+            and attrs["type"] == WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL
+        ):
+            passwords = attrs.get("passwords")
+            if passwords is None or not isinstance(passwords, str):
+                raise serializers.ValidationError(
+                    "Passwords are required for password removal actions",
+                )
+            if not passwords.strip():
+                raise serializers.ValidationError(
+                    "Passwords are required for password removal actions",
+                )
+
         return attrs
 
 

src/documents/signals/handlers.py

@@ -46,6 +46,7 @@ from documents.permissions import get_objects_for_user_owner_aware
 from documents.templating.utils import convert_format_str_to_template_format
 from documents.workflows.actions import build_workflow_action_context
 from documents.workflows.actions import execute_email_action
+from documents.workflows.actions import execute_password_removal_action
 from documents.workflows.actions import execute_webhook_action
 from documents.workflows.mutations import apply_assignment_to_document
 from documents.workflows.mutations import apply_assignment_to_overrides
@@ -792,6 +793,8 @@ def run_workflows(
                         logging_group,
                         original_file,
                     )
+                elif action.type == WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL:
+                    execute_password_removal_action(action, document, logging_group)
 
             if not use_overrides:
                 # limit title to 128 characters

src/documents/tests/test_api_bulk_edit.py

@@ -1582,6 +1582,58 @@ class TestBulkEditAPI(DirectoriesMixin, APITestCase):
         self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
         self.assertIn(b"out of bounds", response.content)
 
+    @mock.patch("documents.serialisers.bulk_edit.remove_password")
+    def test_remove_password(self, m):
+        self.setup_mock(m, "remove_password")
+        response = self.client.post(
+            "/api/documents/bulk_edit/",
+            json.dumps(
+                {
+                    "documents": [self.doc2.id],
+                    "method": "remove_password",
+                    "parameters": {"password": "secret", "update_document": True},
+                },
+            ),
+            content_type="application/json",
+        )
+
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        m.assert_called_once()
+        args, kwargs = m.call_args
+        self.assertCountEqual(args[0], [self.doc2.id])
+        self.assertEqual(kwargs["password"], "secret")
+        self.assertTrue(kwargs["update_document"])
+        self.assertEqual(kwargs["user"], self.user)
+
+    def test_remove_password_invalid_params(self):
+        response = self.client.post(
+            "/api/documents/bulk_edit/",
+            json.dumps(
+                {
+                    "documents": [self.doc2.id],
+                    "method": "remove_password",
+                    "parameters": {},
+                },
+            ),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn(b"password not specified", response.content)
+
+        response = self.client.post(
+            "/api/documents/bulk_edit/",
+            json.dumps(
+                {
+                    "documents": [self.doc2.id],
+                    "method": "remove_password",
+                    "parameters": {"password": 123},
+                },
+            ),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn(b"password must be a string", response.content)
+
     @override_settings(AUDIT_LOG_ENABLED=True)
     def test_bulk_edit_audit_log_enabled_simple_field(self):
         """

src/documents/tests/test_api_workflows.py

@@ -808,3 +808,57 @@ class TestApiWorkflows(DirectoriesMixin, APITestCase):
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.action.refresh_from_db()
         self.assertEqual(self.action.assign_title, "Patched Title")
+
+    def test_password_action_passwords_field(self):
+        """
+        GIVEN:
+            - Nothing
+        WHEN:
+            - A workflow password removal action is created with passwords set
+        THEN:
+            - The passwords field is correctly stored and retrieved
+        """
+        passwords = "password1,password2\npassword3"
+        response = self.client.post(
+            "/api/workflow_actions/",
+            {
+                "type": WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+                "passwords": passwords,
+            },
+        )
+        self.assertEqual(response.status_code, status.HTTP_201_CREATED)
+        self.assertEqual(response.data["passwords"], passwords)
+
+    def test_password_action_no_passwords_field(self):
+        """
+        GIVEN:
+            - Nothing
+        WHEN:
+            - A workflow password removal action is created with no passwords set
+            - A workflow password removal action is created with passwords set to empty string
+        THEN:
+            - The required validation error is raised
+        """
+        response = self.client.post(
+            "/api/workflow_actions/",
+            {
+                "type": WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+            },
+        )
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn(
+            "Passwords are required",
+            str(response.data["non_field_errors"][0]),
+        )
+        response = self.client.post(
+            "/api/workflow_actions/",
+            {
+                "type": WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+                "passwords": "",
+            },
+        )
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn(
+            "Passwords are required",
+            str(response.data["non_field_errors"][0]),
+        )

src/documents/tests/test_bulk_edit.py

@@ -1,3 +1,4 @@
+import hashlib
 import shutil
 from datetime import date
 from pathlib import Path
@@ -1066,3 +1067,147 @@ class TestPDFActions(DirectoriesMixin, TestCase):
                 bulk_edit.edit_pdf(doc_ids, operations, update_document=True)
         mock_group.assert_not_called()
         mock_consume_file.assert_not_called()
+
+    @mock.patch("documents.bulk_edit.update_document_content_maybe_archive_file.delay")
+    @mock.patch("pikepdf.open")
+    def test_remove_password_update_document(self, mock_open, mock_update_document):
+        doc = self.doc1
+        original_checksum = doc.checksum
+
+        fake_pdf = mock.MagicMock()
+        fake_pdf.pages = [mock.Mock(), mock.Mock(), mock.Mock()]
+
+        def save_side_effect(target_path):
+            Path(target_path).write_bytes(b"new pdf content")
+
+        fake_pdf.save.side_effect = save_side_effect
+        mock_open.return_value.__enter__.return_value = fake_pdf
+
+        result = bulk_edit.remove_password(
+            [doc.id],
+            password="secret",
+            update_document=True,
+        )
+
+        self.assertEqual(result, "OK")
+        mock_open.assert_called_once_with(doc.source_path, password="secret")
+        fake_pdf.remove_unreferenced_resources.assert_called_once()
+        doc.refresh_from_db()
+        self.assertNotEqual(doc.checksum, original_checksum)
+        expected_checksum = hashlib.md5(doc.source_path.read_bytes()).hexdigest()
+        self.assertEqual(doc.checksum, expected_checksum)
+        self.assertEqual(doc.page_count, len(fake_pdf.pages))
+        mock_update_document.assert_called_once_with(document_id=doc.id)
+
+    @mock.patch("documents.bulk_edit.chord")
+    @mock.patch("documents.bulk_edit.group")
+    @mock.patch("documents.tasks.consume_file.s")
+    @mock.patch("documents.bulk_edit.tempfile.mkdtemp")
+    @mock.patch("pikepdf.open")
+    def test_remove_password_creates_consumable_document(
+        self,
+        mock_open,
+        mock_mkdtemp,
+        mock_consume_file,
+        mock_group,
+        mock_chord,
+    ):
+        doc = self.doc2
+        temp_dir = self.dirs.scratch_dir / "remove-password"
+        temp_dir.mkdir(parents=True, exist_ok=True)
+        mock_mkdtemp.return_value = str(temp_dir)
+
+        fake_pdf = mock.MagicMock()
+        fake_pdf.pages = [mock.Mock(), mock.Mock()]
+
+        def save_side_effect(target_path):
+            Path(target_path).write_bytes(b"password removed")
+
+        fake_pdf.save.side_effect = save_side_effect
+        mock_open.return_value.__enter__.return_value = fake_pdf
+        mock_group.return_value.delay.return_value = None
+
+        user = User.objects.create(username="owner")
+
+        result = bulk_edit.remove_password(
+            [doc.id],
+            password="secret",
+            include_metadata=False,
+            update_document=False,
+            delete_original=False,
+            user=user,
+        )
+
+        self.assertEqual(result, "OK")
+        mock_open.assert_called_once_with(doc.source_path, password="secret")
+        mock_consume_file.assert_called_once()
+        consume_args, _ = mock_consume_file.call_args
+        consumable_document = consume_args[0]
+        overrides = consume_args[1]
+        expected_path = temp_dir / f"{doc.id}_unprotected.pdf"
+        self.assertTrue(expected_path.exists())
+        self.assertEqual(
+            Path(consumable_document.original_file).resolve(),
+            expected_path.resolve(),
+        )
+        self.assertEqual(overrides.owner_id, user.id)
+        mock_group.assert_called_once_with([mock_consume_file.return_value])
+        mock_group.return_value.delay.assert_called_once()
+        mock_chord.assert_not_called()
+
+    @mock.patch("documents.bulk_edit.delete")
+    @mock.patch("documents.bulk_edit.chord")
+    @mock.patch("documents.bulk_edit.group")
+    @mock.patch("documents.tasks.consume_file.s")
+    @mock.patch("documents.bulk_edit.tempfile.mkdtemp")
+    @mock.patch("pikepdf.open")
+    def test_remove_password_deletes_original(
+        self,
+        mock_open,
+        mock_mkdtemp,
+        mock_consume_file,
+        mock_group,
+        mock_chord,
+        mock_delete,
+    ):
+        doc = self.doc2
+        temp_dir = self.dirs.scratch_dir / "remove-password-delete"
+        temp_dir.mkdir(parents=True, exist_ok=True)
+        mock_mkdtemp.return_value = str(temp_dir)
+
+        fake_pdf = mock.MagicMock()
+        fake_pdf.pages = [mock.Mock(), mock.Mock()]
+
+        def save_side_effect(target_path):
+            Path(target_path).write_bytes(b"password removed")
+
+        fake_pdf.save.side_effect = save_side_effect
+        mock_open.return_value.__enter__.return_value = fake_pdf
+        mock_chord.return_value.delay.return_value = None
+
+        result = bulk_edit.remove_password(
+            [doc.id],
+            password="secret",
+            include_metadata=False,
+            update_document=False,
+            delete_original=True,
+        )
+
+        self.assertEqual(result, "OK")
+        mock_open.assert_called_once_with(doc.source_path, password="secret")
+        mock_consume_file.assert_called_once()
+        mock_group.assert_not_called()
+        mock_chord.assert_called_once()
+        mock_chord.return_value.delay.assert_called_once()
+        mock_delete.si.assert_called_once_with([doc.id])
+
+    @mock.patch("pikepdf.open")
+    def test_remove_password_open_failure(self, mock_open):
+        mock_open.side_effect = RuntimeError("wrong password")
+
+        with self.assertLogs("paperless.bulk_edit", level="ERROR") as cm:
+            with self.assertRaises(ValueError) as exc:
+                bulk_edit.remove_password([self.doc1.id], password="secret")
+
+        self.assertIn("wrong password", str(exc.exception))
+        self.assertIn("Error removing password from document", cm.output[0])

src/documents/tests/test_workflows.py

@@ -2,6 +2,7 @@ import datetime
 import json
 import shutil
 import socket
+import tempfile
 from datetime import timedelta
 from pathlib import Path
 from typing import TYPE_CHECKING
@@ -60,6 +61,7 @@ from documents.tests.utils import DirectoriesMixin
 from documents.tests.utils import DummyProgressManager
 from documents.tests.utils import FileSystemAssertsMixin
 from documents.tests.utils import SampleDirMixin
+from documents.workflows.actions import execute_password_removal_action
 from paperless_mail.models import MailAccount
 from paperless_mail.models import MailRule
 
@@ -3548,6 +3550,196 @@ class TestWorkflows(
 
         mock_post.assert_called_once()
 
+    @mock.patch("documents.bulk_edit.remove_password")
+    def test_password_removal_action_attempts_multiple_passwords(
+        self,
+        mock_remove_password,
+    ):
+        """
+        GIVEN:
+            - Workflow password removal action
+            - Multiple passwords provided
+        WHEN:
+            - Document updated triggering the workflow
+        THEN:
+            - Password removal is attempted until one succeeds
+        """
+        doc = Document.objects.create(
+            title="Protected",
+            checksum="pw-checksum",
+        )
+        trigger = WorkflowTrigger.objects.create(
+            type=WorkflowTrigger.WorkflowTriggerType.DOCUMENT_UPDATED,
+        )
+        action = WorkflowAction.objects.create(
+            type=WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+            passwords="wrong, right\n extra ",
+        )
+        workflow = Workflow.objects.create(name="Password workflow")
+        workflow.triggers.add(trigger)
+        workflow.actions.add(action)
+
+        mock_remove_password.side_effect = [
+            ValueError("wrong password"),
+            "OK",
+        ]
+
+        run_workflows(trigger.type, doc)
+
+        assert mock_remove_password.call_count == 2
+        mock_remove_password.assert_has_calls(
+            [
+                mock.call(
+                    [doc.id],
+                    password="wrong",
+                    update_document=True,
+                    user=doc.owner,
+                ),
+                mock.call(
+                    [doc.id],
+                    password="right",
+                    update_document=True,
+                    user=doc.owner,
+                ),
+            ],
+        )
+
+    @mock.patch("documents.bulk_edit.remove_password")
+    def test_password_removal_action_fails_without_correct_password(
+        self,
+        mock_remove_password,
+    ):
+        """
+        GIVEN:
+            - Workflow password removal action
+            - No correct password provided
+        WHEN:
+            - Document updated triggering the workflow
+        THEN:
+            - Password removal is attempted for all passwords and fails
+        """
+        doc = Document.objects.create(
+            title="Protected",
+            checksum="pw-checksum-2",
+        )
+        trigger = WorkflowTrigger.objects.create(
+            type=WorkflowTrigger.WorkflowTriggerType.DOCUMENT_UPDATED,
+        )
+        action = WorkflowAction.objects.create(
+            type=WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+            passwords=" \n , ",
+        )
+        workflow = Workflow.objects.create(name="Password workflow missing passwords")
+        workflow.triggers.add(trigger)
+        workflow.actions.add(action)
+
+        run_workflows(trigger.type, doc)
+
+        mock_remove_password.assert_not_called()
+
+    @mock.patch("documents.bulk_edit.remove_password")
+    def test_password_removal_action_skips_without_passwords(
+        self,
+        mock_remove_password,
+    ):
+        """
+        GIVEN:
+            - Workflow password removal action with no passwords
+        WHEN:
+            - Workflow is run
+        THEN:
+            - Password removal is not attempted
+        """
+        doc = Document.objects.create(
+            title="Protected",
+            checksum="pw-checksum-2",
+        )
+        trigger = WorkflowTrigger.objects.create(
+            type=WorkflowTrigger.WorkflowTriggerType.DOCUMENT_UPDATED,
+        )
+        action = WorkflowAction.objects.create(
+            type=WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+            passwords="",
+        )
+        workflow = Workflow.objects.create(name="Password workflow missing passwords")
+        workflow.triggers.add(trigger)
+        workflow.actions.add(action)
+
+        run_workflows(trigger.type, doc)
+
+        mock_remove_password.assert_not_called()
+
+    @mock.patch("documents.bulk_edit.remove_password")
+    def test_password_removal_consumable_document_deferred(
+        self,
+        mock_remove_password,
+    ):
+        """
+        GIVEN:
+            - Workflow password removal action
+            - Simulated consumption trigger (a ConsumableDocument is used)
+        WHEN:
+            - Document consumption is finished
+        THEN:
+            - Password removal is attempted
+        """
+        action = WorkflowAction.objects.create(
+            type=WorkflowAction.WorkflowActionType.PASSWORD_REMOVAL,
+            passwords="first, second",
+        )
+
+        temp_dir = Path(tempfile.mkdtemp())
+        original_file = temp_dir / "file.pdf"
+        original_file.write_bytes(b"pdf content")
+        consumable = ConsumableDocument(
+            source=DocumentSource.ApiUpload,
+            original_file=original_file,
+        )
+
+        execute_password_removal_action(action, consumable, logging_group=None)
+
+        mock_remove_password.assert_not_called()
+
+        mock_remove_password.side_effect = [
+            ValueError("bad password"),
+            "OK",
+        ]
+
+        doc = Document.objects.create(
+            checksum="pw-checksum-consumed",
+            title="Protected",
+        )
+
+        document_consumption_finished.send(
+            sender=self.__class__,
+            document=doc,
+        )
+
+        assert mock_remove_password.call_count == 2
+        mock_remove_password.assert_has_calls(
+            [
+                mock.call(
+                    [doc.id],
+                    password="first",
+                    update_document=True,
+                    user=doc.owner,
+                ),
+                mock.call(
+                    [doc.id],
+                    password="second",
+                    update_document=True,
+                    user=doc.owner,
+                ),
+            ],
+        )
+
+        # ensure handler disconnected after first run
+        document_consumption_finished.send(
+            sender=self.__class__,
+            document=doc,
+        )
+        assert mock_remove_password.call_count == 2
+
 
 class TestWebhookSend:
     def test_send_webhook_data_or_json(

src/documents/views.py

@@ -1504,6 +1504,7 @@ class BulkEditView(PassUserMixin):
         "merge": None,
         "edit_pdf": "checksum",
         "reprocess": "checksum",
+        "remove_password": "checksum",
     }
 
     permission_classes = (IsAuthenticated,)
@@ -1522,6 +1523,7 @@ class BulkEditView(PassUserMixin):
             bulk_edit.split,
             bulk_edit.merge,
             bulk_edit.edit_pdf,
+            bulk_edit.remove_password,
         ]:
             parameters["user"] = user
 
@@ -1550,6 +1552,7 @@ class BulkEditView(PassUserMixin):
                         bulk_edit.rotate,
                         bulk_edit.delete_pages,
                         bulk_edit.edit_pdf,
+                        bulk_edit.remove_password,
                     ]
                 )
                 or (
@@ -1566,7 +1569,7 @@ class BulkEditView(PassUserMixin):
                 and (
                     method in [bulk_edit.split, bulk_edit.merge]
                     or (
-                        method == bulk_edit.edit_pdf
+                        method in [bulk_edit.edit_pdf, bulk_edit.remove_password]
                         and not parameters["update_document"]
                     )
                 )

src/documents/workflows/actions.py

@@ -1,4 +1,5 @@
 import logging
+import re
 from pathlib import Path
 
 from django.conf import settings
@@ -14,6 +15,7 @@ from documents.models import Document
 from documents.models import DocumentType
 from documents.models import WorkflowAction
 from documents.models import WorkflowTrigger
+from documents.signals import document_consumption_finished
 from documents.templating.workflows import parse_w_workflow_placeholders
 from documents.workflows.webhooks import send_webhook
 
@@ -259,3 +261,74 @@ def execute_webhook_action(
             f"Error occurred sending webhook: {e}",
             extra={"group": logging_group},
         )
+
+
+def execute_password_removal_action(
+    action: WorkflowAction,
+    document: Document | ConsumableDocument,
+    logging_group,
+) -> None:
+    """
+    Try to remove a password from a document using the configured list.
+    """
+    passwords = action.passwords
+    if not passwords:
+        logger.warning(
+            "Password removal action %s has no passwords configured",
+            action.pk,
+            extra={"group": logging_group},
+        )
+        return
+
+    passwords = [
+        password.strip()
+        for password in re.split(r"[,\n]", passwords)
+        if password.strip()
+    ]
+
+    if isinstance(document, ConsumableDocument):
+        # hook the consumption-finished signal to attempt password removal later
+        def handler(sender, **kwargs):
+            consumed_document: Document = kwargs.get("document")
+            if consumed_document is not None:
+                execute_password_removal_action(
+                    action,
+                    consumed_document,
+                    logging_group,
+                )
+            document_consumption_finished.disconnect(handler)
+
+        document_consumption_finished.connect(handler, weak=False)
+        return
+
+    # import here to avoid circular dependency
+    from documents.bulk_edit import remove_password
+
+    for password in passwords:
+        try:
+            remove_password(
+                [document.id],
+                password=password,
+                update_document=True,
+                user=document.owner,
+            )
+            logger.info(
+                "Removed password from document %s using workflow action %s",
+                document.pk,
+                action.pk,
+                extra={"group": logging_group},
+            )
+            return
+        except ValueError as e:
+            logger.warning(
+                "Password removal failed for document %s with supplied password: %s",
+                document.pk,
+                e,
+                extra={"group": logging_group},
+            )
+
+    logger.error(
+        "Password removal failed for document %s after trying all provided passwords",
+        document.pk,
+        extra={"group": logging_group},
+    )