PADI dont do one, so if you should get your nads on one then it is breaching copyright etc etc.
Answers to knowledge reviews, exams, etc. are in PDF format. NOT the manuals (apart from the instructor manual, spec. instructor manual etc.) Presentations and stuff are usually powerpoint presentations.Hmmm from what I remember instructors get majority (all?) of their books/guidelines/briefings in pdf forms...? At least my instructor was checking my exercises using a laptop...
So, potentially, there might be this material available in electronic form. Another question would be whether available to students, as opposed to professionals...