Two feature requests and some background:
- The ability to turn off annotation (or at least default to the hand tool)
I use Kami only as a PDF viewer. I don't ever annotate documents or want to annotate them. I do like to be able to drag around to read them, though. In Acrobat, the default tool is the hand tool. I'm used to that, so I keep unintentionally making little annotation boxes in Kami, which then leads to a popup later asking if I want to download a previously annotated version.
Just defaulting to Hand (or giving an option for this) would solve my problem, though an even better solution would be to give the option to strip annotation and other UI elements entirely. Even the blue title bar is a bit much. (Most screens have way more horizontal space than vertical, so it's not as efficient to cover that part of the screen.)
- View more than two pages at once
This one is more niche. The best feature in Kami and the reason I use it is the ability to view two pages at once, side by side. MS Word takes this one step further: you can view as many pages as you want at once, so you can see a huge amount of content at one time if you have a screen with high pixel density.
You're already doing great with the two-up view (though it'd be good to be able to default to this). Showing more pages would put you ahead of Acrobat. Then I'd start using Kami as my main PDF viewer even for local files.