Title mostly says it all. Preview is unironically an incredible piece of software. Between feature set and ease of use, I have yet to come across any FOSS that is comparable. Anyone know of a Linux alternative?

EDIT: Due to popular demand I should explain Preview more. It’s a “fully fledged” PDF editor, but somehow it’s completely different from something like Adobe Acrobat. The way most users will interact with it is as a seemingly very plain image viewer, but if you open a PDF you can add fillable boxes, rearrange pages, split and merge PDFs, etc. I cannot place exactly why it’s workflows feel so much better than something like Acrobat.