I can only see the toolbar. Nothing else unless I do ctrl + l.

It is absolutely amazing how incompetent Adobe is. Your “improvement” to Acrobat has rendered it unusable in a trial this morning.

Why does Adobe make it extremely hard to use a simple product. I dont want any of the stupid features and updates. I am having to resort to “paint” program to do my job because of the dumb constant updates. WHY does it have to be so incredibly painful to use this product. Now its having some dumb glitches after updating it? why does it need an update. I hate this program with a passion.

As per ​@ktsurly, 

Hover over Adobe icon in tool bar. Document name should show up. Right click on document name and you will be presented options: move, maximize, etc. Selecting maximize will restore document to full size but if you try to reduce the size of the document on the screen it will revert to the same vertifcal tool bar, without the document.

Try this: Hover over Adobe icon in tool bar. Document name should show up. Right click on document name and you will be presented options: move, maximize, etc. Then select “move”. Using the arrow keys, increase the size of the document until it is possible to drag the corner of the document to the desired size. This should correct the issue and enable full sizing funtionality.

Hey everyone, I think I might have found an accidental solution, or at least it worked for me. When I opened the document I would only see the toolbar and a near invisible circle next to it, I somehow managed to click on the circle and drag it and saw that my window with the PDF was growing larger until I dragged it to the size I wanted. I closed and opened the app with multiple documents since then and its still the correct size. Hope it works for the rest of you. 

Same here. Workarounds work but are time wasters. Please fix asap.

I am having the same issue - I have tried the suggestions here but I cannot view a PDF except with ctrl-L. If I “maximize” I get a full screen of white.

This is a show stopper bug. Tried repair, reinstall and it was still there. Pared down to one monitor and lowest resolution to be able to manipulate the minimized window. Embarrassing! A Sign to minimize other things. 

Worked for me too :) Thanks so much! 😁@ktsurly

I figured out an easy fix (after trying all of the suggestions here with no luck) … hopefully it works for someone else!

Hover over the Acrobat icon in your taskbar at the bottom of the screen. When you do that, the file name should appear above the taskbar. Right click on the file name, and you should get a window that says move, size, minimize, maximize. Click maximize and you’ll be able to see your document again. Good luck!

I’m having the same problem, only started recently.   I have 2 monitors and it seems to occur when I drag an open Acrobat session to a new monitor.   Thank you for the tip on the keyboard shortcuts.  I can do Ctrl K to edit preferences, but my page display is already set to automatic.

I placed a call to Adobe support and the only solution they gave me to reinstall Acrobat.  That fixed it, but 10 minutes later the problem happened again.

I was looking for a way in preferences to disable the New Acrobat experience but can’t find it. Apparently you need to get back into the normal view and then disable new acrobat from the menus, but for some reason you can’t from preferences.