Increase the maximum size of the pdf.js canvas (#7207)

GitOrigin-RevId: 699c4ded7a783e37f655e05452943de7443f1012

services/web/frontend/js/features/pdf-preview/util/pdf-js-wrapper.js

@@ -44,6 +44,7 @@ export default class PDFJSWrapper {
       enableScripting: false, // default is false, but set explicitly to be sure
       enableXfa: false, // default is false (2021-10-12), but set explicitly to be sure
       renderInteractiveForms: false,
+      maxCanvasPixels: 8192 * 8192, // default is 4096 * 4096, increased for better resolution at high zoom levels
     })
 
     linkService.setViewer(viewer)