diff --git a/web/pdf_viewer.js b/web/pdf_viewer.js
index 4b847782d..f5cfda2e0 100644
--- a/web/pdf_viewer.js
+++ b/web/pdf_viewer.js
@@ -218,6 +218,10 @@ var PDFViewer = (function pdfViewer() {
       }
 
       this._setScale(this._currentScaleValue, true);
+
+      if (this.defaultRenderingQueue) {
+        this.update();
+      }
     },
 
     /**
@@ -355,7 +359,7 @@ var PDFViewer = (function pdfViewer() {
       }
     },
 
-    _scrollUpdate: function () {
+    _scrollUpdate: function PDFViewer_scrollUpdate() {
       if (this.pagesCount === 0) {
         return;
       }
@@ -404,6 +408,10 @@ var PDFViewer = (function pdfViewer() {
       }
 
       this._setScaleDispatchEvent(newScale, newValue, preset);
+
+      if (this.defaultRenderingQueue) {
+        this.update();
+      }
     },
 
     _setScale: function pdfViewer_setScale(value, noScroll) {