Every PDF I open simply looks like a completely black screen. When I print, the files appear correctly, but I can never see what I'm working on within the files.
I am using Adobe Acrobat Pro, version 9.0.0 (a related question: I cannot find where I should go to download the incremental updates to the product!) on a MacBook Pro running Mac OS 10.14 (beta)
Acrobat 9 was never designed to run on this (not even finished) operating system, so I am not surprised that you are running into problems. I don't know if the updates will help, but you can find them on Adobe's FTP server. See here for more information: Where are my Adobe Acrobat 9 Updates??? - KHKonsulting LLC