I can't work out how to manually crop a PDF. The manual says it's available from the "page preview area", but "page preview area" isn't mentioned anywhere else in the manual and I can't see the icon described on any view I can find. Where is it?
Edit the song, tab Files and you should see the crop area at the bottom (portrait) or right side (landscape). There a little crop icon to tap for manual cropping (as well as reset and auto-crop.)
You can either do it from the song editor as described by bumblee, or you can load a song, tap to access the overlay, then tap the display options at the bottom left, and then tap "Crop"
Mike