macOS Sierra (10.12) is no longer supported by current Acrobat Pro versions. The last compatible version is likely Acrobat Pro 2017 or Acrobat Pro DC (older update) . Adobe now requires macOS 10.13 or later for newer DC releases.

Searching for "Xf-aaproxi" typically leads to results related to software keygens or unauthorized cracks for Adobe software . Using such tools can expose your Mac to security risks and malware.

If you encounter errors like "Application Not Responding" or installation failures on older macOS versions: Acrobat Pro (CS4) on MacOS Sierra (10.12.6) | Community