Fix: disable pdfjs selection rendering (#13538)

src-ui/src/app/components/common/pdf-viewer/pdf-viewer.component.spec.ts

@@ -90,6 +90,7 @@ describe('PngxPdfViewerComponent', () => {
     }
     expect(viewer).toBeInstanceOf(PDFSinglePageViewer)
     expect(viewer.options.textLayerMode).toBe(0)
+    expect(viewer.options.enableSelectionRendering).toBe(false)
   })
 
   it('applies zoom, rotation, and page changes', async () => {

src-ui/src/app/components/common/pdf-viewer/pdf-viewer.component.ts

@@ -221,6 +221,7 @@ export class PngxPdfViewerComponent
       linkService: this.linkService,
       findController: this.findController,
       textLayerMode,
+      enableSelectionRendering: false,
       removePageBorders: true,
     }