Page numbers can come handy for problem 1. Make the program recognize page numbers and it can tell you which ones are missing and you can just re-scan them. It

Page numbers can come handy for problem 1. Make the program recognize page numbers and it can tell you which ones are missing and you can just re-scan them. It's true that you have to open the book quite far, it might be a problem for some books with very small inner margins but hard cover-books are no problem, just open the covers and flip through the pages inside.