Launch the setup file you downloaded from the Adobe website or found on your installation media.
Convert Acrobat Pro trial to a full license - Adobe Help Center how to activate adobe acrobat pro license key
If you have a 24-digit numeric serial number for a non-subscription version (e.g., Acrobat 2020 or 2024), you can enter it directly within the application. Launch the setup file you downloaded from the
Double-check that you've entered the license key correctly. If the issue persists, ensure you're using the correct license key for your region and version of Acrobat. Acrobat 2020 or 2024)