diff --git a/faq/dwt-with-annotation.md b/faq/dwt-with-annotation.md
index 5c0b0749..868615d7 100644
--- a/faq/dwt-with-annotation.md
+++ b/faq/dwt-with-annotation.md
@@ -72,7 +72,7 @@ Define the following elements:
 ```javascript
 // Dynamsoft Document Viewer
 // Public trial license which is valid for 24 hours
-// You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=mwc
+// You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwtddv
 Dynamsoft.DDV.Core.license = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
 Dynamsoft.DDV.Core.engineResourcePath = "https://cdn.jsdelivr.net/npm/dynamsoft-document-viewer@latest/dist/engine";
 await Dynamsoft.DDV.Core.init(); 
@@ -118,10 +118,10 @@ Links to API Reference:
 ```javascript
 // Create Dynamic Web TWAIN object
 // Public trial license which is valid for 24 hours
-// You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwt
-Dynamsoft.DWT.UseDefaultViewer = false;	
-Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@latest/dist";
+// You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwtddv
 Dynamsoft.DWT.ProductKey = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
+Dynamsoft.DWT.UseDefaultViewer = false;
+Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@latest/dist";
 
 let DWObject;
 // Create a Dynamic Web TWAIN instance without the built-in viewer
@@ -293,8 +293,9 @@ let DWObject, editViewer, ddvDoc;
 (async function(){
     // Dynamsoft Document Viewer
     // Public trial license which is valid for 24 hours
-    // You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=mwc
-    Dynamsoft.DDV.Core.license = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
+    // You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwtddv
+    let license = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
+    Dynamsoft.DDV.Core.license = license;
     Dynamsoft.DDV.Core.engineResourcePath = "https://cdn.jsdelivr.net/npm/dynamsoft-document-viewer@latest/dist/engine";
     await Dynamsoft.DDV.Core.init(); 
 
@@ -315,11 +316,10 @@ let DWObject, editViewer, ddvDoc;
     editViewer.openDocument(ddvDoc.uid);
 
     // Create Dynamic Web TWAIN object
-    // Public trial license which is valid for 24 hours
-    // You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwt
+    Dynamsoft.DWT.ProductKey = license;
     Dynamsoft.DWT.UseDefaultViewer = false;
     Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@latest/dist";
-    Dynamsoft.DWT.ProductKey = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
+
     // Create a Dynamic Web TWAIN instance without the built-in viewer
     Dynamsoft.DWT.CreateDWTObjectEx({
         WebTwainId: "dwtId",