diff --git a/packages/pdfjs-viewer/src/custom.ts b/packages/pdfjs-viewer/src/custom.ts
index 5c2eaa892d..997b8d66f1 100644
--- a/packages/pdfjs-viewer/src/custom.ts
+++ b/packages/pdfjs-viewer/src/custom.ts
@@ -46,6 +46,7 @@ function configurePdfViewerOptions() {
         if (event.detail?.source === window && window.PDFViewerApplicationOptions) {
             window.PDFViewerApplicationOptions.set("disablePreferences", true);
             window.PDFViewerApplicationOptions.set("enableHighlightFloatingButton", true);
+            window.PDFViewerApplicationOptions.set("enableComment", true);
         }
     };
     if (window.parent && window.parent !== window) {