content: This app used to be my go to for reading pdf ebooks. But Ive had to delete it because it held my files hostage and many of the features it had in the past are no longer available. Some books I downloaded were routed to the adobe reader downloads folder...which does not allow access through androids file explorer. The files are hidden Also you cannot delete those files unless you delete the app. Its some kind of marketing ploy to get you to subscribe to their cloud rubbish. Deleted