Changing reader default from Acrobat

Click on the file (select it) press Command I, then look where it says, "Open with." Then select the app that you want to use for opening it, there is the option for it to be for all similar files too.

Personally, I find that Preview works just as well as Acrobat Reader and is dramatically quicker responding.

RayMMW

"Changing reader default from Acrobat: I'm having a major problem rescuing my files from Adobe Acrobat Reader DC version 2022.001.20112. It not only is holding my PDF files hostage, also photo files, text files that when opened with any other file extension reads like gibberish.[...]"

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Use a Windows 11 PC:

I was having this issue, and I opened my files Adobe Acrobat Reader on a Windows 11 PC. It worked just fine. Try the same.

Not to mention a much smaller footprint and not having to deal with Adobe.