Wonder.Legal - Create perfectly legal documents for as low as $1.99
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.
Avodocs - Free legal documents for startups in minutes
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
Atrium - Legal services for startups, powered by ML
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request