diff --git a/src-ui/src/app/components/common/pdf-viewer/pdf-viewer.component.ts b/src-ui/src/app/components/common/pdf-viewer/pdf-viewer.component.ts
index 274b06032..4fc55429a 100644
--- a/src-ui/src/app/components/common/pdf-viewer/pdf-viewer.component.ts
+++ b/src-ui/src/app/components/common/pdf-viewer/pdf-viewer.component.ts
@@ -35,6 +35,7 @@ import type {
 import { PDFSinglePageViewer } from 'pdfjs-dist/web/pdf_viewer'
 
 PDFJS['verbosity'] = PDFJS.VerbosityLevel.ERRORS
+PDFJS['isEvalSupported'] = false
 
 export enum RenderTextMode {
   DISABLED,