Follow these steps to activate Adobe Acrobat Pro using a license key (serial number). These instructions assume you already have Acrobat Pro installed and a valid license key.
Activating your Adobe Acrobat Pro license depends on whether you have a subscription (linked to your Adobe ID) or a perpetual/retail serial number Method 1: Activate via Adobe ID (Subscriptions) how to activate adobe acrobat pro license key
If you have just downloaded the software, follow these steps: How to Activate Your Adobe Acrobat Pro License