so... im a college student and have a new ipad and want to scan my textbooks in order to digitize them and turn them into pdf documents. I've found a few textbooks online, already in pdf format, and this has been working so well i want to scan and convert all my textbook now. There are 4 apps that im looking at right now 1 pdf reader pro - $5.99 2 pdf reader ipad edition -$4.99 3 pdf reader pro ipad edition - $9.99 4 scanner pro - $6.99 im leaning toward pdf reader ipad edition the most. I read in a review scanner pro only does black and white scans and im not even sure if that app can even convert an image to pdf. The 2 functions that seem like they would be the most useful in this instance are 1: the ability to import images straight from my photo library. 2: convert those images into a single pdf file, which all 3 pdf reader apps claim they do. It also seems that the pdf reader ipad edition is vastly superior to its pro counterpart. Firstly it looks to have more features, and at 36 MB compared to 13.2 MB for the pro version, seems to reinforce that notion. Also the regular version is only $4.99 where as the pro version is $9.99. The pro version was just released last week but the 5 star to 1 star review % worries me a bit. If you have any suggestions, comments, recommendations, or advice please respond below. EDIT: it seems pdf reader ipad edition and pdf reader pro ipad edition are actually made by 2 separate companies and don't appear to to be related to each other.