Prince XML
One of the best HTML to PDF converter. Gives you immense control over the process and great customization with CSS. Support for JavaScript and SVG.
PDFreactor
PDFreactor is a cross-platform enterprise-grade HTML to PDF conversion engine. Supports HTML5, CSS3, JavaScript. APIs for Java ...
wkhtmltopdf
wkhtmltopdf is an open source (LGPL) command line tools to render HTML into PDF and various image formats using the QT Webkit ...