Hide (not collapse) Right Tool Pane completely.
The collapsed Right Tool Pane violates usability principles. To quickly scroll a page, users can no longer just drag the mouse cursor all the way Right, to click on the Right scroll bar. This would probably take only 1 sec. With the annoying Right Tool Pane collapsed, nesting right beside the Right scroll bar, users must now carefully drag the mouse cursor, take aim so-as-to not click on the Right collapsed pane, then can he/ she click on the right scroll bar. This is really slow and inefficient.
This must have been designed by someone that doesn't use scrollbars. It's very easy to fix, just look at how in Gmail the side panel can be hidden and a small tab is left at the bottom to restore it instead of a full height bar.
Found this online post, can us this workaround.
"Okay, seems I've stumbled upon an ugly workaround but it works for me. I'm using Windows 8.1. Go to the install directory, i.e." C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroApp\ENU". Create a new subfolder (I used "Disabled"). Move 3 files from the "ENU" folder into the new "Disabled" folder: AppCenter_R.aapp & Home.aapp & Viewer.aapp. Open a PDF and no more Tool Pane! I originally moved just the "Viewer" file but if you clicked on "Home" or "Tools" on the toolbar you couldn't go back to the "Document." Moving all 3 files takes care of that issue. Like a lot of people I don't and won't ever use any of the tools. I just want a reader."
How many years has this request been made? It is not that difficult to change the codes to completely hide the Right Tool Pane. This feedback forum seems pretty useless. 2021-01-14