Using an "X-Force" keygen (XF-aaproxi) for Adobe products is a method used for unauthorized activation.
To get a working version on an older Mac, follow these steps to ensure a clean installation: Xf-aaproxi For Mac Os Sierra Adobe Acrobat Pro
Creative Cloud Desktop App: If you have a subscription, the safest way to install is through the Adobe Creative Cloud app. Using an "X-Force" keygen (XF-aaproxi) for Adobe products
Modern Acrobat (2024+): The newest versions of Acrobat Pro generally require macOS 12 (Monterey) or later and are not compatible with Sierra. What is "Xf-aaproxi"? Xf-aaproxi For Mac Os Sierra Adobe Acrobat Pro