Cam scanner is very useful app for all those people who not having a scanner in office or home. I really like the easy to use and the quality of PDFs the app generated so I dont have scanner in my home. It is save lots of scan documents. If I mail same documents first I scan from cam scanner than mail directly. It easy to upload document in dropbox through gmail. It is clear concept for documents scanning app. Simply designed. Easy for operating and its very useful app