CamScanner
This is a n Iphone Scanner app.This app allows the user to Save documents on the go.
It uses the Iphone camera to click snaps of the document and on the spot allows to edit it so that user can clip off the unnecessary part.
It also allows to take images in batch/bulk.
There is also a paid HD version of this app available but this free version is just perfect to use for non-commercial users.
This app supports inbuilt facilities to directly view document as pdf,mail,airprint,upload,E-mail to yourself etc.