Tag Archives: set password for pdf using cpp

PDF Encryption is the process of protecting the document using a password as well as some cryptographic algorithms including AES or RC4. You can also set different privileges to limit user's access to different operations. For example, you can only allow printing, adding annotation, filling forms, and etc. In this article, you will learn how to encrypt PDF files using C++. Furthermore, this article also covers how to set different privileges and decrypt password-protected PDF files using C++.