The Pocketbook always has the option to display page numbers in a little status bar running across the bottom of the screen. I generally use FBReader to render files, because it's far more customizable than Adobe Reader (which does additionally place the page number at the top right of the screen).

I gather the page number thing with Adobe isn't something you can get rid of short of switching to FBReader. It's just how the Adobe software was coded, if I understand this thread correctly.

File type isn't much of an issue, because FBReader renders them all pretty consistently, and I've got the settings tweaked just the way I like them. I do have to resort to using Adobe for PDF though, so they're still usable, just not as pretty.

Aha, I finally got around to taking some screencaps. I know there was interest.

Here are the direct links to a bunch of different file types, all opened using FB Reader. IIRC, for all of these, I have indents set and added extra space between paragraphs.

PRC
RTF (There's no need to edit the file prior to loading it on the device, because fonts/spacing/indents and all that can be adjusted on the fly.)
EPUB
HTML saved from AO3 (Story body)
HTML saved from Google docs

It was surprisingly easy to take the screencaps once I remembered how. Let me know if you want me to try any other formats, or adjust any of the settings. (Jon laughs at me because I tend to leave the text rather large.)