CamScanner is one of those apps that is so simple you wonder why no one thought of it before. Essentially it allows you to use your iPhone' camera as a scanner. So you can just take a photo of a document, whiteboard, notepad or receipt and CamScanner will automatically crop it, enhance the image and then turn it into a a pdf so you can email it to a recipient, sync it to cloud services like Google Docs or just store it locally.
You can also add tags to your documents so you can easily search and find them later. The free version includes adverts and also puts a CamScanner watermark on your images. The paid for version, CamScanner , gets rid of these restrictions and is quite reasonably priced at £2.99.
Quick, efficient and easy to use, CamScanner provides you with a great way to make PDF documents out of photos from your camera.