PDF Secure automates the process of password protecting pdf's, encrypting pdf's, decrypting existing pdf's, re-encrypting, changing passwords, adding permissions & changing existing permissions in pdf's.
Includes Encrypt RC 40 bit and RC 128 bit support, Decrypts RC 40, RC 128 & AES.
Example .asp, vb, .net, php, cold fusion & vc++ code included
Free download