We have a set of free plugins for Eclipse, NetBeans and IDEA. These free plugins add a pure Java viewer and bookmarking plugin to each of the Java IDEs and also provide a good code base for developing your own plugin or PDF support in your RCP applications built on Eclipse or NetBeans.
The NetBeans plug-in also has an option to convert PDF pages to JavaFX.
We will be testing the plugins for all the latest IDE releases in the near future as all IDEs have seen updates recently (Eclipse Juno, NetBeans 7.2 and IDEA12 beta). We also have some plans for some new features but we thought you might have some ideas. So what would you like to see in the PDF plugins?