ecto - ecto is a feature-rich desktop blogging editor for MacOSX.

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.

Marvin Classic - Marvin Classic is free to use the web and mobile application specially designed for ebook lovers who want to read, manage, and download new ebooks.

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

PDF Professional - PDF Professional is a feature-rich PDF Ultimate Solution for reading, annotating, form filling, editing, signing, and converting PDFs on your Mac, iPhone and iPad.

PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request