For filling forms mupdf-gl, for combining and rearranging pages pdf arranger, imagemagick to convert images to files (commandline with easy format 'convert file.png file.pdf'), mupdf and zathura to view them.

Didn't even know nay of these existed. why don't they promote?

I expected to hear MF DOOM's Accordion

best streaming anything: Stremio best streaming site: lookmovie2