I guess this falls under UI? I'm ADHD and it would be SUPER helpful to have a feature where I can dim the screen except for an area I'm currently reading. I read a lot of professional articles and when I go to write a note I completely lose my place. It could be just a static section and as I scroll the section stays the same so I'm effectively moving my page through it. I can cope if I print out the pages, but articles are frequently 12+ pages each and I'd rather save the paper and be able to "filter" digitally.
If you're feeling really fancy, maybe make it so the size and location of the filter can be changed.
Concept example attached.

For the last few days, if I have more than a page of recent documents, when I open Adobe Reader, it immediately becomes unresponsive.

I then have to open Adobe Reader by double clicking on a PDF document and clear the recent document list. Opening Adobe Reader this way means that it doesn't try to load the thumbnails for the recent documents, which is what I assume is the problem. Adobe Reader will then open correctly until the recent files list gets too big.

As a workaround, I have just set the "Documents in recently used list" to 10 which will hopefully solve this. Prior to this it was set to 100.

When I've closed Adobe Reader when it has been unresponsive this has generated a Microsoft error report, so you should be able to track these down and get the error information.

Windows 10, 64 bit, version 2004
Adobe Reader version 20.13.20064.405839

As a result of COVID, we are now forced to have virtual tribunal hearings and present testimony in PDF via screen sharing.

Witnesses often have to point out something in an exhibit - a sentence or paragraph or a point on a map and it is difficult for viewers to see the hand tool because it is too smaller to be easily visible and may not have sufficient contrast with document colors to stand out.

At in-person hearings, it was possible for a witness to stand up a point with their hand to an item on the main display screen for the hearing. The virtual format does not allow this.

Having the ability to adjust the size and/or color of the cursor would help hearings proceed more smoothly by making it easier for witnesses to point out specific items more clearly..

Currently, click-hold and dragging with the middle mouse button results (hand symbol with four arrows) in the document scrolling at a (rather extreme) rate of speed that is determined how far away your cursor is from where you first clicked the button. The document will scroll continuously until you either move your cursor back closer to its initial location, or release the mouse button.
I would much prefer the behavior to be like what you get when you hold space and then click and drag with the left mouse button. I.e., you "drag" the document around with the mouse, and the document only moves as much as you "drag" it.

Please implement this behavior !
Thank you.

I've found in using Acrobat Reader DC with an account for Mac OS X that when you open the application and are prompted for a password, you cannot click the Quit option (among others) in the application menu in the toolbar nor can you click the red X button in the upper left of the main application. You can't even close out Reader by right clicking in the dock and selecting Quit, something about the authentication form completely blocks other interaction with the application. Neither can you click the X in the authentication form. It is active, which is very misleading as it does nothing.

I've found that if I open Reader and haven't authenticated in a while, my only options to get the window out of the way are to authenticate or to completely reboot my computer. I could possibly use the Terminal to force-kill the application, but I really don't feel like authentication should be this hard of a block on being able to manage the processes running on my local computer.

My environment is as follows:

OS: Mac OS X Big Sur 11.0.1
Arch: Intel (x86_64)
Adobe Reader DC: 2020.013.20064

I was going to try and sign out and back in to get some screenshots of what I mean, but I couldn't actually find a way to trigger this "unauthenticated" state in which the application requires credentials to interact period. It just seems to happen at random that I'm unauthenticated again and have to navigate this issue to get use of my Desktop again.

I have to work with PDFs a lot and I have to deal with them via browser. For the past years I haven't had any problems with using the browser PDF-viewer, but as of recently the option to do a quick google search in a new tab when highlighting text within a document and right-clicking on it is no longer available. There is 'copy', 'print', 'rotate', 'save as' but not the 'search the web for [highlighted text]' which was so very helpful and useful for me. Please, consider making it available again since I can hardly imagine how anyone would benefit from removing this feature.

Acrobat Reader DC changes the mouse pointer into its own scheme. Not talking about the specific tools, just the standard mouse when hovering over the Acrobat window.
I don't have the best vision, so I have my Windows mouse pointer set to be very visible, or I will lose track of it on the screen. But when using Acrobat, I lose track of the pointer, because Acrobat INSISTS that I don't get to use my custom pointer, but rather use the virtually invisible Acrobat default.
Why would Acrobat need to change the pointer? I get it for specific tools, like drag or magnify or whatever, but just for regular use? NO reason, other than to annoy users as much as possible