diff --git a/programming/android/user-guide/getting-started-v2.0.20.md b/programming/android/user-guide/getting-started-v2.0.20.md
index 6d00eea..1f22962 100644
--- a/programming/android/user-guide/getting-started-v2.0.20.md
+++ b/programming/android/user-guide/getting-started-v2.0.20.md
@@ -134,7 +134,7 @@ Add the SDK to your new project. Please read [Add the Libraries](#add-the-librar
>Note:
>
>- The license string here grants a time-limited free trial which requires network connection to work.
- >- You can request for a 30-day trial license via the Customer Portal. Offline trial license is also available by contacting us.
+ >- You can request a 30-day trial license via the [Request a Trial License](https://www.dynamsoft.com/customer/license/trialLicense?product=dcp&utm_source=guide&package=android){:target="_blank"} link. Offline trial license is also available by [contacting us](https://www.dynamsoft.com/contact/){:target="_blank"}.
>- If you download the Installation Package, it comes with a 30-day trial license by default.
### Initialize Code Parser And Parse the Code Bytes
diff --git a/programming/android/user-guide/getting-started.md b/programming/android/user-guide/getting-started.md
index 77d7395..b543b3a 100644
--- a/programming/android/user-guide/getting-started.md
+++ b/programming/android/user-guide/getting-started.md
@@ -105,7 +105,7 @@ Add the SDK to your new project. Please read [Add the Libraries](#add-the-librar
>Note:
>
>- The license string here grants a time-limited free trial which requires network connection to work.
- >- You can request for a 30-day trial license via the Customer Portal. Offline trial license is also available by contacting us.
+ >- You can request a 30-day trial license via the [Request a Trial License](https://www.dynamsoft.com/customer/license/trialLicense?product=dcp&utm_source=guide&package=android){:target="_blank"} link. Offline trial license is also available by [contacting us](https://www.dynamsoft.com/contact/){:target="_blank"}.
>- If you download the Installation Package, it comes with a 30-day trial license by default.
### Initialize Code Parser And Parse the Code Bytes
diff --git a/programming/ios/user-guide/getting-started-v2.0.20.md b/programming/ios/user-guide/getting-started-v2.0.20.md
index 698c010..c91d9a0 100644
--- a/programming/ios/user-guide/getting-started-v2.0.20.md
+++ b/programming/ios/user-guide/getting-started-v2.0.20.md
@@ -125,7 +125,7 @@ Add the SDK to your new project. Please read [Add the xcframeworks](#add-the-xcf
>
>- Network connection is required for the license to work.
>- The license string here will grant you a time-limited trial license.
- >- If the license has expired, you can go to the customer portal to request for an extension.
+ >- You can request a 30-day trial license via the [Request a Trial License](https://www.dynamsoft.com/customer/license/trialLicense?product=dcp&utm_source=guide&package=ios){:target="_blank"} link. Offline trial license is also available by [contacting us](https://www.dynamsoft.com/contact/){:target="_blank"}.
### Initialize Code Parser And Parse the Code Bytes
diff --git a/programming/ios/user-guide/getting-started-v2.0.21.md b/programming/ios/user-guide/getting-started-v2.0.21.md
index a4e7201..e051231 100644
--- a/programming/ios/user-guide/getting-started-v2.0.21.md
+++ b/programming/ios/user-guide/getting-started-v2.0.21.md
@@ -125,7 +125,7 @@ Add the SDK to your new project. Please read [Add the xcframeworks](#add-the-xcf
>
>- Network connection is required for the license to work.
>- The license string here will grant you a time-limited trial license.
- >- If the license has expired, you can go to the customer portal to request for an extension.
+ >- You can request a 30-day trial license via the [Request a Trial License](https://www.dynamsoft.com/customer/license/trialLicense?product=dcp&utm_source=guide&package=ios){:target="_blank"} link. Offline trial license is also available by [contacting us](https://www.dynamsoft.com/contact/){:target="_blank"}.
### Initialize Code Parser And Parse the Code Bytes
diff --git a/programming/ios/user-guide/getting-started.md b/programming/ios/user-guide/getting-started.md
index 5d02103..adb573d 100644
--- a/programming/ios/user-guide/getting-started.md
+++ b/programming/ios/user-guide/getting-started.md
@@ -105,7 +105,7 @@ Add the SDK to your new project. Please read [Add the xcframeworks](#add-the-xcf
>
>- Network connection is required for the license to work.
>- The license string here will grant you a time-limited trial license.
- >- If the license has expired, you can go to the customer portal to request for an extension.
+ >- You can request a 30-day trial license via the [Request a Trial License](https://www.dynamsoft.com/customer/license/trialLicense?product=dcp&utm_source=guide&package=ios){:target="_blank"} link. Offline trial license is also available by [contacting us](https://www.dynamsoft.com/contact/){:target="_blank"}.
### Initialize Code Parser And Parse the Code Bytes