JPedal PDFviewer version 3.60 is now out as part of continual developments and improvements to the leading Java PDF viewing and extraction library.
It is another major update with the following key features:-
1. Support for PDF Layers functionality, allowing content to be hidden or shown in a PDF file.
2. First release of our Flex viewer, using JPedal and Flex to provide a nifty clientside PDF viewer
3. Lots of speed improvements, especially with non-embedded fonts.
Full details at http://www.jpedal.org