Symptoms

When trying to activate the program with the serial number of a license, the error message appears:

This serial number cannot be used for ABBYY FineReader PDF <version>. Please check the serial number and try again.

Cause

The error message can appear when trying to activate a different version of the program, not the one the license is for.

Resolution

To resolve the issue, please follow the steps below:

1. Check the serial number to use.
   The serial number of the license can be used for activating only the corresponding version of the program.
2. Install the corresponding version of ABBYY software: FineReader download links.
   Make sure that the used license corresponds to the version of the program to be activated. 

If the issue has not been resolved, please submit a request.