PDF Security ActiveX 2.0.2009.725

PDF Security ActiveX Component can encrypt PDF with standard 40-bit or 128-bit encryption. You can also set the permission of the user such as printing, modifying etc. You can make secure PDF and protect your PDF in one function call.
PDF Security ActiveX also provides the ability to decrypt an encrypted PDF given the password.
Add "encrypt pdf " or "decrypt pdf " feature to your application now!
Both encryption and decryption are done by PDF Security ActiveX Component itself without the need of installing additional software such Acrobat PDF Reader.You can make secure PDF documents easily to achieve password enabled content protection.
Encrypt and decrypt PDF files
Supports PDF user password and owner password protection
Password protect opening of the PDF document
Disable printing of the PDF document
Disable copying of text/graphics
Disable modifications to PDF the document
Password protection for PDF files with 40 or 128 bit encryption
Examples in VB, ASP, VB Script are provided.