According to antivirus telemetry from Objective-See and VirusTotal:
: Older versions like Acrobat 9 Pro or Acrobat X are not supported on macOS Sierra and may encounter significant performance issues. Important Usage Tips Acrobat Pro 10.1.16 compatible w/ MacOS Sierra???? Xf-aaproxi For Mac Os Sierra Adobe Acrobat Pro
The last version that officially supports macOS 10.12 is . Xf-aaproxi For Mac Os Sierra Adobe Acrobat Pro
Initiating an request to bypass the need for a live internet connection to Adobe's servers. System Requirements for Older Mac Systems Xf-aaproxi For Mac Os Sierra Adobe Acrobat Pro
If you encounter issues with Xf-aaproxi or Adobe Acrobat Pro on Mac OS Sierra, try: