Hi, I'm sorry if this is a re-hash of a topic that has already been discussed, but I've spent a couple hours going over previous discussions and trying to figure it out on my own to no avail. My situation is that I have numerous (1000+) PDF articles on my laptop that I've already organized into specific folders. Is there some program that I can use to sync these articles onto my iPad, then use the iPad to annotate them, and then sync this annotated version back to my laptop? Additionally, if I e-mail myself an article, or get an article from the web and put it straight onto my iPad into a folder, is there an easy way to then sync that folder/article with my laptop? I've tried using Goodreader and Dropbox, but while it is easy to get the articles off Dropbox, it is not as easy to put them back after they've been annotated and still have the same name. And I don't want to have to go renaming every article I annotate and then uploading it, and then having to go and delete the original article. Thanks so much.