This probably won't help everyone with the issue, but it might help someone. I have a 3d mouse that I use primarily with Solidworks (a 3d CAD software). The 3d mouse has a Fit button that will bring the model or drawing sheet to fill the monitor. It can also be set to Fit One Full Page in Adobe. By the way, it's great for zooming in and out in pdf's also.

Problem NOT solved.
Ctrl+0 does set the zoom so that one full page would fit in the viewing window, but it does not serve the same function as the "Fit one full page to window" button.

The only option to some how use this is to go in Edit -> Preferences -> Page display -> Default Layaout and Zoom, set PAGE LAYOUT to "Single-page" and set ZOOM to "Fit page".
Now all the document will be opened in "Fit one full page to window" mode directly.

This is how I manage the issue, works for me because I use most of the documents in "Fit one full page to window" mode.

Not resolved, just tried to shut the post up. BOOOO!
Larger pieces will fit to width, but not height using the methods below. Wholly impractical. If you cannot add the single shortcut, give us the ability to create our own keystroke combinations or assign hotkey combinations to take them away from functions we DON'T use and attribute them to what we DO use

This is unacceptable, there is still no solution 3 years later and in the latest update they buried the buttons in the menu, either give me a button that I don't have to dig for or a simple keyboard hotkey that is less than 4-5 strokes

Once I open a pdf, to get thumbnails and Fit one full page to window, do this: Alt, V, S, RightArrow, P, Control 0 [the last step was Control Zero]

Question to Adobe: Why is it so difficult to simply program a shortcut to this "Fit one full page to window" button. I face the same issue and waste a lot of time with this.
Handling and commenting of documents with Adobe DC has come worse and much more time consuming compared to previous version.

This has not been resolved. The bug report was for a keyboard shortcut for the "Fit one full page to window" button. There is no keyboard shortcut that mimics just that button.

i agree that this is not resolved. i can either go click buttons in my toolbar with my mouse; but if i want to just use keyboard keystrokes (which i do), i need to 1) set the "View" >> "Page Display" to "Single Page View" and then 2) set the "View" >> "Zoom" to "Fit Height".

to do this on my keyboard, i click 'Alt + V', then 'P', then 'S', then 'Ctrl + 0'. that's four keystrokes. kinda annoying and my dexterity is only about 80% accurate with that combination :) it'd be nice to have a single keystroke. ya know?

If you gave a numeric keypad, ctrl + + works

This is NOT resolved. There is plenty of room on the ribbon to have a separate icon for the Fit to One Page option and at least a keyboard short cut for this option! Ctrl+0 just zooms in

This is a work-around, not a resolution. It would still be nice to have a keyboard shortcut specific to this option.

The below work-around still requires clicking on "Fit one full page" once before it is selectable via CTRL-0.

ctrl+2 THAN ctrl+1

for Mac: cmd + 'zero' works. Thank you :)

Combination of "Control + 0" and "Control + Page Up/Page Down" seems to mimic the functionality you want.

Jacob, this combination works! Thank you--this will save me a lot of time throughout the work day :)

F9 to toggle menu - View - Show/Hide - Toolbar Items - Show Page Display Tools - Single Page View. Once that's on your toolbar, you can use it and then click CTRL/CMD+0 to view the whole single page.
You can put "zoom to page level" on the toolbar, too: View - Show/Hide - Toolbar Items - Show Select & Zoom Tools - Zoom to Page Level.
I always hit my longer pdfs with that combination, too, to quickly scroll through pages.

Hi Ayush,

Ctrl+0 does set the zoom so that one full page would fit in the viewing window, but it does not serve the same function as the "Fit one full page to window" button. The missing functionality here is that the button keeps one page in the window, and pressing the up or down arrows will flip through the pages. Pressing Ctrl+0 allows for scrolling instead of flipping through the pages.

Thanks