SnakeLogic - The puzzle based snake game
PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
Gumroad Small Product Lab - Bite-sized lessons to help you launch your product.
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
TRIBE Group - TRIBE is a self-serve marketplace connecting social media influencers with leading brands to create social media campaigns.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request