iText is a Java PDF library originally dual licensed under MPL/LGPL
Beginning with version 5.0 the developers have moved to the AGPL to improve their ability to sell commercial licenses. I fully respect the developers' wishes and rights. To assist those desiring to stick with the old license I'm making the final MPL/LGPL version more easily available.
I have compiled the project using Java 6. The jars are available under the Downloads tab. Since iText 4.2.0 is compatible with JDK 4+, you may wish to recompile yourself to get JDK 4/5 compatiblity. To do so:
cd iText-4.2.0/src ant jar ant jar.rups ant jar.rtf
Additionally, version 5.0 breaks binary compatibility by changing package names from com.lowagie to com.itextpdf. To offer compatibility with compatibly-licensed code targeting 5.0, I've also produced a jar of 4.2.0 using com.itextpdf. See the Downloads tab. You can find the source in the com.itextpdf branch of the repository. You can compile with the instructions above.