Acrobat on Mac OS has critical bug. In particular, when entering data into a dynamic XML PDF file, the “created” timestamp of the file system metadata of the file is changed upon save of the file (which results in the “created” timestamp matching the “modified” timestamp). This bug does not exist in Adobe Acrobat on Windows.

This bug affects any program that relies on the “created” and “modified” timestamps accurately reflecting when files are created and modified (like cloud data storage systems).

Adobe has known about this bug for 5 years but has not done anything to address it.