PDFjet Open Source Edition is a library for dynamic generation of PDF documents from Java and .NET. The PDFjet Open Source Edition has the following features: * Drawing support for: points, lines, boxes, circles, bezier curves, polygons, stars, complex paths and shapes.
http://java-source.net/open-source/pdf-libraries
As always, full source code is available under LGPL license! Enjoy! Paolo … Open Source Projects … Unable to add and open pdf files
http://www.paologios.com/
Open Source 100% Java PDF Renderer/Viewer … Last week I told you we had a secret new open source project to release. Think of it as an early Christmas present. A project that you’ve never heard of and has nothing to do with JavaFX (which is partially untrue, but I’ll get to that in a second).
http://weblogs.java.net/blog/joshy/archive/2007/12/the_big_secret.html