I am just totally befuddled here. I'm an indie comic book creator and have converted my books, all pdfs to epub using calibre and wondershare. There's no text other than what is imbedded in each page file.
Using iTunes Producer, I went through every step, bought ISBNs, filled out every piece of into - yet STILL get errors in delivery. HOW HARD CAN THIS BE?!?!?!
Do I really have to go through a digital publisher if I'm not a programming genius rather than do this on my own?