1. Java API for encrypting / decrypting pdf files stackoverflow.comI need to encrypt and decrypt pdf files. Is there a free or low cost Java API that does that ? Basically I need to hide files from normal users. Any ... |
2. java program to add digital signature into a pdf file and also encrypt and decrypt it coderanch.comhi , i have written a code to add digital signature to pdf . but when security comes . currently i have taken care with creating private and public key using key pair generator class. next i need to encrypt and decrypt on the other side . i have used currently itext.jar file for adding DigitalSignature to pdf file . could ... |