1.When we open a PDF, it always opens at 100% size. If I try to zoom out using two fingers, it automatically snaps back to full screen as soon as I release my fingers. But this doesn’t happen in other apps—zooming out there makes it easier to scroll through the PDF …It should zoom out the same way it does in the second picture, although I took that screenshot while holding it with my fingers

1. Also, this app doesn’t have a separate option to change the background theme. It automatically uses the device’s theme, but there should be an independent option for this as well