In the year of our lord 2024 this is still an unresolved issue. Windows 10 and 11. Unified installer setup using the customization wizard and installed with the current patch. I should be able to mass deploy a program that doesn't mess with the default appearance of the operating system in an enterprise environment.

In the year of our lord 2023 this is still an unresolved issue.

Jason: I had this issue previously and it was fixed with an Acrobat update in May. I am currently running Acrobat Pro DC version 2020.013.20074 and this issue is still not present for me.

This is still an issue in December 2020. Acrobat 20 Pro

Still having the same issue in Windows 10 Pro v2004. Running Adobe Acrobat DC 20.012.20043, Creative Cloud version 5.2.1.441.

Bryan Evans: I'm on that version and it fixed my issues completely. Maybe you have something else going on?

This has NOT been fixed. I made sure both Acrobat and Reader are updated (from the Help menu) and both are v20.009.20074.

Hi Mario,

With the latest release this issue has been fixed. Please Upgrade to the latest version by doing Help >> Check for Updates. Please feel free to reach out in case of any issues.

I assume that most/many of you have already found the update. I got it through Help > Check for Updates in Acrobat (it hadn't shown up in my CC app).
It would have been nice if this bug had never happened at all, but it's also good to know that maybe we all helped get it fixed by posting here.

Hallelujah!
thanks, Adobe developers!

Woo hoo!! Thanks for finally fixing this!

Steve, I didn't see any updates on Creative Cloud Desktop app but I *did* see an update from Acrobat menu (on Windows 10): "Help" → "Check for Updates..."

Looks like it is rolling out. You can manually install using this link (which also contain the patch notes describing the fix): https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/continuous/dccontinuousmay2020.html#dccontinuousmaytwentytwenty

Hey, Michael Tobin: what platform are you using (Mac/Win) and what version are you running? I did not see an available update on Creative Cloud Desktop so I'm very curious.

It's a miracle! I just updated Acrobat and it doesn't break drop shadows anymore, at least when I open the "Comments" tool (I haven't tried the "Don't open in tabs" option).

Hi Mario,

With the latest May Release we have Fixed this issue.Please update Acrobat DC with the latest Version. feel free to reach out in case of any queries.

I have this too with acrobat dc pro, whenever I press comment, shadows under windows disappear. So once we don't have any update by adobe, I made a workaround so I don't need to turn on shadows every single time I open pdf's. I turn on the little border in windows (this is turned off, but to turn it on is very easy), i don't have the shadows but with this 1px border i always see where my windows are and it's easy to resize for example.

We're six months further from the initial post and it is still not fixed. According to https://supportdownloads.adobe.com/product.jsp?product=1&platform=Windows there have been updates on 3/17/2020 and 2/11/2020 -- but this particular issue has not been resolved.

For me it is inconceivable that an application is even capable of changing such a user preference, accidental (which would be quite a feat of non-accomplishment) or not (which is absolutely unimaginable).

BUG

Yes it is really annoying. You'd think shadows are a decoration, but with Windows 10's ultra-flat style they are actually essential to clearly differentiating between windows.