I am a scriptwriting student so we get a lot of scripts to read that were scanned and are very huge files. I need to annotate these scripts while in class. The problem is I have tried: iBooks, Kindle, Notability, and even Notes Plus. The pdf opens but takes a long time to load (even after it has been saved), every page shows up as blank and then it takes several seconds before the page starts to load (so a quarter every several seconds will load). Before I go ahead and start wasting money on apps, can anyone recommend a fast pdf annotator that I can get? I don't mind spending money but it has to be fast. Edit: I own the new iPad 16gb.