diff --git a/EnvelopeGenerator.Web/wwwroot/js/ui.js b/EnvelopeGenerator.Web/wwwroot/js/ui.js
index fdf97f15..cae28f04 100644
--- a/EnvelopeGenerator.Web/wwwroot/js/ui.js
+++ b/EnvelopeGenerator.Web/wwwroot/js/ui.js
@@ -16,7 +16,16 @@
     isEditableAnnotation: function (annotation) {
       return !(annotation.isSignature || annotation.description === 'FRAME')
     },
-  });
+  }).then((instance) => {
+    instance.addEventListener('viewState.currentPageIndex.change', (pageIndex) => {
+      console.log('Active page:', pageIndex + 1)
+    })
+
+    const totalPages = instance.totalPageCount || 0
+    console.log('All pages loaded, total pages:', totalPages)
+
+    return instance
+  })
 }
 
 const allowedToolbarItems = [
diff --git a/EnvelopeGenerator.Web/wwwroot/js/ui.min.js b/EnvelopeGenerator.Web/wwwroot/js/ui.min.js
index 3a33bbf6..06610632 100644
--- a/EnvelopeGenerator.Web/wwwroot/js/ui.min.js
+++ b/EnvelopeGenerator.Web/wwwroot/js/ui.min.js
@@ -1,4 +1,4 @@
-function loadPSPDFKit(n,t,i,r){return PSPDFKit.load({inlineWorkers:!1,locale:r,licenseKey:i,styleSheets:["/css/site.css"],container:t,document:n,annotationPresets:getPresets(),electronicSignatures:{creationModes:["DRAW","TYPE","IMAGE"]},initialViewState:new PSPDFKit.ViewState({sidebarMode:PSPDFKit.SidebarMode.THUMBNAILS}),isEditableAnnotation:function(n){return!(n.isSignature||n.description==="FRAME")}})}function addToolbarItems(n,t){var i=n.toolbarItems.filter(n=>allowedToolbarItems.includes(n.type));i=IS_READONLY?i.concat(getReadOnlyItems(t)):i.concat(getWritableItems(t));IS_DESKTOP_SIZE||IS_READONLY||(i=i.concat(getMobileWritableItems(t)));n.setToolbarItems(i)}function getWritableItems(n){return[{type:"custom",id:"button-share",className:"button-share",title:"Teilen",onPress(){n("SHARE")},icon:`<svg width="30" height="30" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+function loadPSPDFKit(n,t,i,r){return PSPDFKit.load({inlineWorkers:!1,locale:r,licenseKey:i,styleSheets:["/css/site.css"],container:t,document:n,annotationPresets:getPresets(),electronicSignatures:{creationModes:["DRAW","TYPE","IMAGE"]},initialViewState:new PSPDFKit.ViewState({sidebarMode:PSPDFKit.SidebarMode.THUMBNAILS}),isEditableAnnotation:function(n){return!(n.isSignature||n.description==="FRAME")}}).then(n=>{n.addEventListener("viewState.currentPageIndex.change",n=>{console.log("Active page:",n+1)});const t=n.totalPageCount||0;return console.log("All pages loaded, total pages:",t),n})}function addToolbarItems(n,t){var i=n.toolbarItems.filter(n=>allowedToolbarItems.includes(n.type));i=IS_READONLY?i.concat(getReadOnlyItems(t)):i.concat(getWritableItems(t));IS_DESKTOP_SIZE||IS_READONLY||(i=i.concat(getMobileWritableItems(t)));n.setToolbarItems(i)}function getWritableItems(n){return[{type:"custom",id:"button-share",className:"button-share",title:"Teilen",onPress(){n("SHARE")},icon:`<svg width="30" height="30" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
               <path d="M20 13V17.5C20 20.5577 16 20.5 12 20.5C8 20.5 4 20.5577 4 17.5V13M12 3L12 15M12 3L16 7M12 3L8 7" stroke="#000000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
             </svg>`},{type:"custom",id:"button-logout",className:"button-logout",title:"logout",onPress(){n("LOGOUT")},icon:`<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="currentColor" class="bi bi-box-arrow-left" viewBox="0 0 16 16">
                 <path fill-rule="evenodd" d="M6 12.5a.5.5 0 0 0 .5.5h8a.5.5 0 0 0 .5-.5v-9a.5.5 0 0 0-.5-.5h-8a.5.5 0 0 0-.5.5v2a.5.5 0 0 1-1 0v-2A1.5 1.5 0 0 1 6.5 2h8A1.5 1.5 0 0 1 16 3.5v9a1.5 1.5 0 0 1-1.5 1.5h-8A1.5 1.5 0 0 1 5 12.5v-2a.5.5 0 0 1 1 0z"/>