Diff Checker - Diff Checker is a free online diff tool that quickly and easily gives you the text differences...
Anvil PDF Filling API - The easiest way to programmatically populate any PDF
PlutoPDF - A URL to PDF converter wrapped behind a simple API.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
PNG Express - Automated asset exporting and specs from PSDs
Scanbot - Scanbot is a mobile app that allows you to use your device's camera as a document scanner. The app is capable of scanning a large number of source materials, and it can handle QR codes as well.