I have some textbooks in PDF-format that I would like to read in iBooks for Mac and iOS. iBooks can open both PDFs and ePub, but it treats them differently. Only with ePub files you can mark text, take notes and make quiz-cards and such. I would like these features for my textbook in PDF. I've tried various PDF to ePub-converters, but it seems like all the pictures is missing when I add the ePub file to iBooks, and also the formatting is horrible. Any tips on how to get my textbook in iBooks as an ePub-file without losing pictures and formatting?