I have a good new for you if you install the new JDK 1.5 from Sun the RC4 cipher is include so no probleme with encryption!
Cryptography support must also be present at run time. In particular, a provider for the RC4 cipher is needed. Unfortunately, the sample JCE provider in Sun's JDK 1.4 does not provide RC4. If you get a message saying
"Cannot find any provider supporting RC4"
- PDF encryption Thierry Coita
- RE: PDF encryption Gaywood, Mark