Since #12241 we have notifications for this when the user navigates away from the viewer, but we do not yet warn when switching documents, which means that if you call e.g. `PDFViewerApplication.open` with a new document (or directly call `BaseViewer.setDocument` when using the viewer components standalone) there won't be any warning about losing form data. This should be addressed.
this.pdfScriptingManager.dispatchDidPrint();
    if (this.printService) {
      this.printService.destroy();
      this.printService = null;
      if (this.pdfDocument) {
        this.pdfDocument.annotationStorage.resetModified();
      }
    }
    this.forceRendering();
  },
  rotatePages(delta) {
    this.pdfViewer.pagesRotation += delta;
    
    
  },
  requestPresentationMode() {
    if (!this.pdfPresentationMode) {
      return;
    }
    this.pdfPresentationMode.request();
  },
  triggerPrinting() {