BookBildr PDF files aren't compatible with Amazon out of the box because Amazon and BookBildr use different page sizes. BookBildr uses international sizes, such as A5 and A4, whereas Amazon uses US sizes, such as 6 x 9 inches. Also, Amazon requires picture book files with full-page images to include bleed. BookBildr printing partners add it automatically when we print your books.
Amazon has plenty of resources on how to prepare your book for publication. But if you're having trouble, you can always hire us to do the formatting for you.