I have acrobat reader mobile for iOS connected to my Dropbox and use it for marking up documents on my iPad using Apple Pencil. Works fantastic. The HUGE hassle, unfortunately, is navigating the hierarchy to get to your files....which you have to do every single time you launch it, as there appears to be no way to "star" a folder. You can star a file...and this puts it in your 'starred files' and you can get to it quickly. But I want to bookmark or star a FOLDER; I have docs associated with a project in one place and want to be able to fire up acrobat and get there instantly...and not have to click down through my entire folder hierarchy. A simple and effective solution would be to allow us to 'star' folders as well...so that they appear in the quick access "starred" list. No idea why such an obvious function was left out. Or am I missing some trick?