Anvil PDF Filling API - The easiest way to programmatically populate any PDF
Shrink Me - Compress images with one drag / click
KDAN Mobile PDF Reader - PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.
Watermark.ink - Online Photo Watermarker
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
TinyVid by Kamua - Trim and compress video files to fit any size limitation