Adobe DOES have a 64-bit version of Acrobat.
Is there a 64-bit version of Adobe?
The 64-bit application is a unified application for Acrobat and Acrobat Reader. The default installation location is C:\Program Files\Adobe\Acrobat.
Is Acrobat DC 64-bit?
Windows — Acrobat DC is still entirely 32-bit. Thus, there is only a 32-bit installer; again you have no choice!
