Hi Currently I use Skim on my Macbook to annotate my textbooks and iAnnotate on my iPad. I can't figure out how to transfer my highlighting from the iPad to Macbook and vice versa. My textbooks are stored on Dropbox and when I open the textbooks from Dropbox on my computer after highlighting them on the iPad they appear unhighlighted. At some point I figured out a trick to solve this but for the life of me I can't remember how I did it now. Please help. I need a quick way to make it easier for me to cover my weekly readings without spending too much time trying to figure this out. I'm also open for suggestions if there are better apps out there than Skim and iAnnonate. Thanks Tissue.