PDF Encryption & Decryption

Granular meta-data and security settings can be applied. This now includes the ability to limit PDF documents to be unprintable, readonly and encrypted. 128 bit encryption, decryption and password protection of PDF documents is supported.

How to Add Password Encryption to PDF in C#

  1. Install C# library to add password encryption to PDF files
  2. Open existing PDF document to be encrypted
  3. Set Password property in the opened PDF document object
  4. Save the encrypted PDF document in specified location
  5. Perform step 2 & 3 in two lines of C# code.