Homer Conferencing - Homer is a free cross-platform SIP softphone with video support.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Double Text - Cheeky Facebook messenger analyzer
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
MyLab - Break through to improving results with Pearson's MyLab & Mastering. We're working with educators and institutions to improve results for students everywhere.
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.