Adobe Acrobat 9 is not compatible with Windows 11 Adobe officially ended support for Acrobat 9 on June 26, 2013 , long before Windows 11 was released. Adobe Help Center
We installed Adobe Acrobat 9 Pro on a standard Windows 11 Build (23H2/24H2). Here is the breakdown of what works, what breaks, and what catches fire. is adobe acrobat 9 compatible with windows 11