My comment about djvu was mostly just about my own laziness, because (kill me if you need to) I like using Preview on the Mac for reading and annotating, and it

My comment about djvu was mostly just about my own laziness, because (kill me if you need to) I like using Preview on the Mac for reading and annotating, and it doesn't read them, and once they have to live in a djvu viewer, I tend not to read them or mark them up. Same goes for Adobe Acrobat Reader when I'm on Windows on my University's networked PCs.