I am going to be a dental student and want to be able to open lectures, generally PowerPoint and PDFs and take notes on them. I want to make sure I can do this without having to go through email or my desktop because sometimes emails can't send large enough files. I have an app iAnnotate that I can edit PDFs but have not been able to figure out how to get power points sent and opened on the ipad without email or the use of a desktop or web storage. I am open to other apps as well. Thank you for your help!