diff --git a/public/static/pdf/web/viewer.html b/public/static/pdf/web/viewer.html
index 74804ec6a..3b6bafae3 100644
--- a/public/static/pdf/web/viewer.html
+++ b/public/static/pdf/web/viewer.html
@@ -233,19 +233,19 @@ See https://github.com/adobe-type-tools/cmap-resources
     <div id="outerContainer">
 
       <div id="sidebarContainer">
-<!--        <div id="toolbarSidebar">-->
-<!--          <div class="splitToolbarButton toggled">-->
-<!--            <button id="viewThumbnail" class="toolbarButton toggled" title="Show Thumbnails" tabindex="2" data-l10n-id="thumbs">-->
-<!--               <span data-l10n-id="thumbs_label">Thumbnails</span>-->
-<!--            </button>-->
-<!--            <button id="viewOutline" class="toolbarButton" title="Show Document Outline (double-click to expand/collapse all items)" tabindex="3" data-l10n-id="document_outline">-->
-<!--               <span data-l10n-id="document_outline_label">Document Outline</span>-->
-<!--            </button>-->
-<!--            <button id="viewAttachments" class="toolbarButton" title="Show Attachments" tabindex="4" data-l10n-id="attachments">-->
-<!--               <span data-l10n-id="attachments_label">Attachments</span>-->
-<!--            </button>-->
-<!--          </div>-->
-<!--        </div>-->
+        <div id="toolbarSidebar">
+          <div class="splitToolbarButton toggled">
+            <button id="viewThumbnail" class="toolbarButton toggled" title="Show Thumbnails" tabindex="2" data-l10n-id="thumbs">
+               <span data-l10n-id="thumbs_label">Thumbnails</span>
+            </button>
+            <button id="viewOutline" class="toolbarButton" title="Show Document Outline (double-click to expand/collapse all items)" tabindex="3" data-l10n-id="document_outline">
+               <span data-l10n-id="document_outline_label">Document Outline</span>
+            </button>
+            <button id="viewAttachments" class="toolbarButton" title="Show Attachments" tabindex="4" data-l10n-id="attachments">
+               <span data-l10n-id="attachments_label">Attachments</span>
+            </button>
+          </div>
+        </div>
         <div id="sidebarContent">
           <div id="thumbnailView">
           </div>
@@ -345,9 +345,9 @@ See https://github.com/adobe-type-tools/cmap-resources
           <div id="toolbarContainer">
             <div id="toolbarViewer">
               <div id="toolbarViewerLeft">
-                <button id="sidebarToggle" class="toolbarButton" title="Toggle Sidebar" tabindex="11" data-l10n-id="toggle_sidebar">
-                  <span data-l10n-id="toggle_sidebar_label">Toggle Sidebar</span>
-                </button>
+<!--                <button id="sidebarToggle" class="toolbarButton" title="Toggle Sidebar" tabindex="11" data-l10n-id="toggle_sidebar">-->
+<!--                  <span data-l10n-id="toggle_sidebar_label">Toggle Sidebar</span>-->
+<!--                </button>-->
                 <div class="toolbarButtonSpacer"></div>
                 <button id="viewFind" class="toolbarButton" title="Find in Document" tabindex="12" data-l10n-id="findbar">
                   <span data-l10n-id="findbar_label">Find</span>