diff --git a/web/app.js b/web/app.js
index 29eba0fd3..63a68ce0d 100644
--- a/web/app.js
+++ b/web/app.js
@@ -613,7 +613,8 @@ const PDFViewerApplication = {
 
     this.secondaryToolbar = new SecondaryToolbar(
       appConfig.secondaryToolbar,
-      eventBus
+      eventBus,
+      this.externalServices
     );
 
     if (this.supportsFullscreen) {
@@ -2917,6 +2918,10 @@ function webViewerKeyDown(evt) {
       case 80: // p
         PDFViewerApplication.requestPresentationMode();
         handled = true;
+        PDFViewerApplication.externalServices.reportTelemetry({
+          type: "buttons",
+          data: { id: "presentationModeKeyboard" },
+        });
         break;
       case 71: // g
         // focuses input#pageNumber field
diff --git a/web/secondary_toolbar.js b/web/secondary_toolbar.js
index a561ff170..b38bc2322 100644
--- a/web/secondary_toolbar.js
+++ b/web/secondary_toolbar.js
@@ -51,7 +51,7 @@ class SecondaryToolbar {
    * @param {SecondaryToolbarOptions} options
    * @param {EventBus} eventBus
    */
-  constructor(options, eventBus) {
+  constructor(options, eventBus, externalServices) {
     this.toolbar = options.toolbar;
     this.toggleButton = options.toggleButton;
     this.buttons = [
@@ -150,6 +150,7 @@ class SecondaryToolbar {
     };
 
     this.eventBus = eventBus;
+    this.externalServices = externalServices;
     this.opened = false;
 
     // Bind the event listeners for click, cursor tool, and scroll/spread mode
@@ -212,6 +213,10 @@ class SecondaryToolbar {
         if (close) {
           this.close();
         }
+        this.externalServices.reportTelemetry({
+          type: "buttons",
+          data: { id: element.id },
+        });
       });
     }
   }