After upgrading to a paid plan on KDAN PDF macOS, you may find that advanced features are still locked or unavailable. This article explains the possible reasons and provides step-by-step solutions to help restore your subscription or order access.

Applicable Plans

• Subscription plans or permanent license purchased on KDAN PDF Mac, via Apple App Store

Issue Description

After completing an upgrade, including in app-purchases of the subscription or permanent license, you may experience the following issues:

• Advanced or premium features remain locked
• The app still shows the Free Basic plan
• Your subscription does not appear to be activated

Possible Causes

This issue may occur due to one of the following reasons:

• The app is not signed in with the KDAN ID associated with the purchase
• The purchase information has not been properly synced
• A temporary app or system sync issue occurred after upgrading
• The permanent license was purchased on a different operating system (Windows via the Microsoft Store)

Solutions

Please try the following solutions in order:

Solution 1: Restore Your Purchase

If you are unable to access advanced features after your purchase, please try restoring the purchase.

1. Please launch the Apple App Store on your device and sign in using the Apple account associated with your purchase.
2. Open KDAN PDF Mac and log in again using the KDAN ID associated with the purchase.

3. Click on the Restore button from the Account Settings > Plan > Restore Purchase section or from the menu bar.
   

   

**Note 1: A stable internet connection is required during the restore process.

**Note 2: For in-app purchases of a permanent license, you need to restore your previous purchase each time you reopen the app in order to recognize your license. This is a restriction by Apple, and we appreciate your understanding.

Solution 2: Confirm You Are Signed in with the Correct KDAN ID

If solution 1 does not resolve the issue, please ensure that you are logged in with the KDAN ID associated with the purchase.

Please repeat Solution 1 using any other potential email addresses that may be linked to your account or used during registration (e.g., personal email, company email, or school email, etc.).

If you signed up with a third-party account (for example, Sign in with Apple), please also try logging in with these accounts.

**Note: The Apple account used to complete the purchase does not need to be associated with or identical to your KDAN ID. The two accounts are managed independently and may use different email addresses.

Solution 3: Restart the App and Sign In Again

Refreshing the app may help sync your subscription status.

1. Sign out your account.
   
2. Fully quit KDAN PDF from the menu bar
   
3. Reopen KDAN PDF and sign in again with your KDAN ID.
4. Check whether the advanced features are now accessible.

Solution 4: Verify the Purchase Platform (for in-app purchases of the permanent license)

Please note that the KDAN PDF permanent license is platform-specific and can only be used on a single device. A permanent license purchased on Windows cannot be used on macOS.

Still Need Help?

If you have tried all the solutions above and still cannot access advanced features, please contact our support team at helpdesk@kdanmobile.com and provide the following information:

• Your KDAN ID (email address) or any additional email addresses that may be linked to your account or used during registration
• The invoice or transaction details related to your purchase
• The platform from which you upgraded or purchased the service
• Screenshots of your “Account” page and “Plan” page
• A brief description of the issue and any error messages shown

Notes

KDAN PDF Permanent License Mac (dmg.) version purchased from KDAN Store or other third-party platforms cannot be restored within the application. License assignment is managed through the Licensing Service Center.

Please refer to the following article for instructions:

• How to Assign / Remove Licenses
• How to Activate Your Product
• Trouble Shooting: Unable to Enter License Code for KDAN PDF Permanent License Mac

Updated April 23, 2026 09:21