Acrobat DC 19.021.20048 changes Windows window shadowing settings

[pekkap415284]

It seems that after the 19.021.20048 update, whenever I open a PDF file with Acrobat DC, my Windows 10 graphics settings change in a way that the window shadow setting is turned off.

If I go to Advanced System Settings / System Properties > Advanced > Performance Settings > Visual Effects, I can toggle back the "Show shadows under windows" setting.

It's getting a bit annoying to do this every time I open a PDF document. If there's a fix, please let me know.

Thanks for your reply.

[Arpit Agarwal]

HI Pekkap,

Thanks for reaching to us. Can you please do the following and see if this issue is still repro at your end..

• Try After Re-Starting your machine
• If issue is still there can you try to Re-install Acrobat and check again

This issue has nothing to do with Acrobat and is probably an OS level bug. Also as per the below link its recommended that you upgrade your windows version.

https://answers.microsoft.com/en-us/windows/forum/all/show-shadows-under-windows-option-keeps-gettin...

Please feel free to reach me out in case of any issues/concerns.

[Ascun]

It has to do with Acrobat and I wouldn't hold my breath waiting for Adobe to fix it or even to be aware of it.

Fortunately, another user did all the work identifying steps to reproduce and workaround, and it doesn't involve reinstalling Acrobat or the whole OS:

https://community.adobe.com/t5/Acrobat/Opening-a-PDF-File-Causes-Windows-10-quot-Show-shadows-under/...

[pekkap415284]

Followed the link kindly provided by Ascun and everything works well now. The problem seems to be as stated in the thread linked by Ascun and can be reproduced. Now that I think of it, I had changed the preference value for tabbed document view earlier. After the change, the window shadowing problem started.

Thanks to Ascun!

[jonb32665962]

This is not an OS bug, this is Acrobat affecting Windows. I can reproduce the bug noted below, it has to do with Acrobat's tabbed vs. window display for PDFs. I need to have PDFs open in separate windows so the "workaround" of changing to tabbed display does not help me. Even after uninstalling and re-installing Acrobat the issue persists. I'm hoping Adobe will recitfy this at some point, but honestly I'm not holding my breath.

[davburk96]

I have exactly the same issue with Acrobat. Please, Adobe, fix this! Whenever I open the comments panel, the shadows disappear in Windows Explorer and I need to turn them off and back on to get them to reappear.

[Guest]

Please vote this issue here : https://acrobat.uservoice.com/forums/590923-acrobat-for-windows-and-mac/suggestions/38822896-bug-sha...