wkhtmltopdf - wkhtmltopdf is an open source (LGPL) command line tools to render HTML into PDF and various image...
Layer CSS - Lightweight CSS framework to build your own fluid layouts
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Paaatterns - Free collection of beautiful patterns for all vector formats
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
Unused CSS - Easily find and remove unused CSS rules