I’m going to start off by saying that right now I think iCloud Drive is probably the best method. If you choose Manual, touch and hold a book cover, then drag it to iCloud Drive. It’s easy to create a folder for each category of PDF, like I do with my set up Adobe Acrobat Reader – Best Free PDF Reader for iPad. Digital Daily Journal. Download for iPad. Download for iPad Change the book display: Tap Grid or List. Adobe Acrobat Reader is a popular PDF reader for iPads with more than million instal