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.
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.
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
Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Bootstrap Table - Bootstrap Table has been designed to reduce development time and to require no specific knowledge from developers.