Hello all, new to the forum. Thought you all could help me. I'm going back to school and am in need of a .pdf/.ppt reading app. I'm looking for an app that I can download my lecture notes on to that will not only read pdf and ppt (or pptx) files, but where I would also have the ability to scribble some notes (most likely using a stylus) on slides or pages and have those notes saved on those slides/pages for later review. I'm posting in this forum because my iPad is a Gen 1, however if there is a more appropriate place for it then mods please move it. Either way, if anyone knows of a free, or cheap ($5 or less) app that can accomplish this please let me know!