J4L FOP Server 1.0 Easy to install and use free FOP Server. It converts input XML data to PDF files using XSL-FO templates and based on Apache FOP. It includes additional options as PDF digital signature, PDF forms and XSL-FO editor.
EditiX XML Editor (for Linux/Unix) 2011 EditiX is an XML editor and XSLT debugger for Windows,Linux and Mac OS X designed to help web authors and web application programmers take advantage of the latest XML and XML-related technologies such as XSLT / FO, DocBook and XSD Schemas.
Apache OFBiz - a powerful pack of free enterprise applications If you are seeking a solid foundation for your set of corporate software that would satisfy your current and future needs and will allow you to customize the entire solution in any way you want, you will hardly find a candidate better than Apache OFBiz. OFBiz means Open For Business and it’s true — you can start using the applications supplied