CamScanner An android Apps to turn your mobile as a scanner
Using Camscanner Android apps you can use your android mobile as a scanner, just take a snap of your document using this app and it will convert them as a PDF document.
You can directly send converted scan documents to emails as an attachments. This app has inbuilt image conditioning and enhancing feature, so that your scanned documents looks like a real scanned not as an image. After taking snap you can select your desired area from image , you can rotate the image , after that it will trim and enhance the image and save that. you can also click on PDF icon to convert that scan image to pdf and clicking on share button you can send the scanned doc to dropbox, email, bluetooth, google doc.
You can view more about this app at this link – Camscanner