Vim - Highly configurable text editor built to enable efficient text editing
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
Kakoune - Vim inspiredâââFaster as in less keystrokesâââMultiple selectionsâââOrthogonal design
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.
qemacs (for quick emacs) - Savannah is a central point for development, distribution and maintenance of free software, both GNU and non-GNU.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request