PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
WeTransfer - WeTransfer is a free service to send big or small files from A to B.
Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents
Araxis Merge - Home of the award-winning Araxis Merge two and three-way file comparison (diff) and merging application, Araxis Find Duplicate Files, Araxis Replace In Files, and the Araxis Ketura issue tracking, project scheduling and time tracking application.
HTML PDF API - Easily generate PDF documents from HTML code with our powerful API
Beyond Compare - Beyond Compare allows you to compare files and folders.