diff --git a/pdfjs/web/viewer.html b/pdfjs/web/viewer.html
index 0bc40f7..fdb9ec0 100644
--- a/pdfjs/web/viewer.html
+++ b/pdfjs/web/viewer.html
@@ -111,10 +111,6 @@ See https://github.com/adobe-type-tools/cmap-resources
               <span data-l10n-id="print_label">Print</span>
             </button>
 
-            <button id="secondaryDownload" class="secondaryToolbarButton download visibleMediumView" title="Download" tabindex="54" data-l10n-id="download">
-              <span data-l10n-id="download_label">Download</span>
-            </button>
-
             <a href="#" id="secondaryViewBookmark" class="secondaryToolbarButton bookmark visibleSmallView" title="Current view (copy or open in new window)" tabindex="55" data-l10n-id="bookmark">
               <span data-l10n-id="bookmark_label">Current View</span>
             </a>
@@ -210,9 +206,6 @@ See https://github.com/adobe-type-tools/cmap-resources
                   <span data-l10n-id="print_label">Print</span>
                 </button>
 
-                <button id="download" class="toolbarButton download hiddenMediumView" title="Download" tabindex="34" data-l10n-id="download">
-                  <span data-l10n-id="download_label">Download</span>
-                </button>
                 <a href="#" id="viewBookmark" class="toolbarButton bookmark hiddenSmallView" title="Current view (copy or open in new window)" tabindex="35" data-l10n-id="bookmark">
                   <span data-l10n-id="bookmark_label">Current View</span>
                 </a>
diff --git a/pdfjs/web/viewer.js b/pdfjs/web/viewer.js
index 16a3c0c..165ad4b 100644
--- a/pdfjs/web/viewer.js
+++ b/pdfjs/web/viewer.js
@@ -148,7 +148,6 @@ function getViewerConfiguration() {
       viewFind: document.getElementById("viewFind"),
       print: document.getElementById("print"),
       presentationModeButton: document.getElementById("presentationMode"),
-      download: document.getElementById("download"),
       viewBookmark: document.getElementById("viewBookmark")
     },
     secondaryToolbar: {
@@ -157,7 +156,6 @@ function getViewerConfiguration() {
       toolbarButtonContainer: document.getElementById("secondaryToolbarButtonContainer"),
       presentationModeButton: document.getElementById("secondaryPresentationMode"),
       printButton: document.getElementById("secondaryPrint"),
-      downloadButton: document.getElementById("secondaryDownload"),
       viewBookmarkButton: document.getElementById("secondaryViewBookmark"),
       firstPageButton: document.getElementById("firstPage"),
       lastPageButton: document.getElementById("lastPage"),
@@ -1576,8 +1574,6 @@ const PDFViewerApplication = {
 
     eventBus._on("print", webViewerPrint);
 
-    eventBus._on("download", webViewerDownload);
-
     eventBus._on("firstpage", webViewerFirstPage);
 
     eventBus._on("lastpage", webViewerLastPage);
@@ -1702,8 +1698,6 @@ const PDFViewerApplication = {
 
     eventBus._off("print", webViewerPrint);
 
-    eventBus._off("download", webViewerDownload);
-
     eventBus._off("firstpage", webViewerFirstPage);
 
     eventBus._off("lastpage", webViewerLastPage);
@@ -2126,8 +2120,6 @@ let webViewerFileInputChange, webViewerOpenFile;
     const appConfig = PDFViewerApplication.appConfig;
     appConfig.toolbar.viewBookmark.setAttribute("hidden", "true");
     appConfig.secondaryToolbar.viewBookmarkButton.setAttribute("hidden", "true");
-    appConfig.toolbar.download.setAttribute("hidden", "true");
-    appConfig.secondaryToolbar.downloadButton.setAttribute("hidden", "true");
   };
 }