Having some understanding of PDF and having fiddled with iBook Author a bit, there would be little point to this. What you seem to want is a very sophisticated PDF to ePub conversion application. iBook Author allows the author to create ebooks using templates that generate every element of the ebook. PDF is not object-oriented. It does not distinguish between the dedication and the index. The best that you can do with PDF is to convert it to editable text and then paste that text into the section where you want it to appear.