I got the same error message as above, so I tried installing libgnucrypto-java and libbcprov-java. Now pdftk aborts with the following message:
libgcj failure: gcj linkage error. Incorrect library ABI version detected. Aborting. -- java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.BouncyCastleProvider (missing dependency) https://bugs.launchpad.net/bugs/173208 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
