Runaway CPU in Acrobat DC Pro 2020.006.20042 (Mac OS X 10.15.4 - Catalina)

Question

When I open a PDF file in Acrobat DC Pro, CPU usage rises to over 95% and stays there as long as the window is in focus. If I bring another application window into focus (such as Chrome, where I am writing this now), CPU usage drops to below 10%. However, if I bring the Acrobat window back into focus, the CPU pegs again. I am doing nothing in Acrobat. I just opened a document, and I'm reading the first page. CPU usage remains at 95%+ as long as the window stays in focus.

This has been happening for over a week. I have rebooted the system several times in the interim, but the issue persists. Here is some info on my machine:

Any help would be appreciated.

Amal. · Accepted Answer

Hi Kevin

Thank you for sharing the logs. Please give us some time to get it checked, we will share the update soon.

In the meantime, please try to reset the preferences to default as described here https://community.adobe.com/t5/acrobat/how-to-reset-acrobat-preference-settings-to-default/td-p/4792082?page=1 and see if that makes any difference.

If it still doesn't work, please create a new test user profile or enable the root account in mac https://support.apple.com/en-in/HT204012 and try using the application there and check for the issue.

Keep us posted with the results.

Thanks for your time, patience and cooperation

Regards

Amal

Hi Kevin,

We have got the update from the engineering team.

Please try to disable page caching by unchecking the option "Use page cache" in Edit > Preferences > Page Display > Rendering.

Keep us posted how it goes

Regards

Amal

sl_lbp · Answer

Btw the solution of Amal worked for me on Windows 11, too. Thanks!

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