Protect documents with passwords or remove passwords from documents.

Resources about passwords

Docotic.Pdf can encrypt PDF documents with passwords using AES-256, AES-128, and standard (RC4) encryption algorithms. You can specify permissions for users of the encrypted document.

You can also decrypt PDF documents with the help of the library. You can save the decrypted document, removing passwords and permissions.

Docotic.Pdf library 9.4.17358-dev Regression tests 14,737 passed Total NuGet downloads 4,335,543


Here is the list of articles about operations with passwords.

Sample code

These sample codes show how you can use Docotic.Pdf for operations with passwords.