This is the scenario: I have a large group of mathematics books that i want to convert to Apple (mac) Ibooks. They have 70% text and 30% graphics (tables, images, graphs, etc). I am being told that ebooks are fairly simple when it comes to formatting flowable text. The problems arise first and foremost with the PDF format and secondly when you begin having the graphics. They are "broken" due to size, room on the "page"/screen, different size screens also effect display, etc. The bottom line I am trying to decipher: Is there any converters that can properly format this type of rich content in order to pass the Epub 1.0.5? Or is there a lot of hand proofing to make the conversion compatible? These books are 400 to 600 pages of mind numbing math, lol. I also am told that a PDF file requires a fair amount of editing to comply with and upload to Apple. Since we are talking about large number of pages, my fear is that I am going to basically end up spending an extended amount of time editing. So what I am looking for and obviously my limited knowledge isnt letting me understand from the above answers is, if you were to be faced with a project such as this...what chain of events would you use to accomplish getting your PDF uploaded to the Apple store, or would u turn it over to the professionals? Im not afraid of some work, but I dont want to delay this project while i learn coding unless there is a program out there that would simplify it within reason. Sorry for the time consuming droning Thank you for your time and if I am not adequately spelling out my dilemma, please feel free to call me on it and ask questions that will make it clearer for u. Im new at this so my presentation could be sorely lacking.