It’d be cool if, to the side of the page count, there was an arrow button that changes directions depending on whether you’re closer to the top or bottom. A back-to-top button that will allow you to easily move up and down to the last pages.
Also, a theme that is Black & White. Personally, I don’t like working on white for long periods, but I also just don’t like the look of a black page. What if you combine ‘em. Make the background and UI black, but the paper white. BOOM! Don’t have to say thanks, I know it’s a great idea.