Because of the added security, setting both types of passwords is often beneficial. However, only the Owner password allows the user to change the restricted features. If your PDF file is protected with both types of passwords, it can be opened with either password. The customary security provided by Acrobat PDF consists of two different methods and two different passwords – the user password, which encrypts the file and prevents opening, and the owner password, which specifies operations that should be restricted even after the document is decrypted, which can include printing, copying text/graphics out of the document, and modifying the document. There are mainly two sorts of passwords – one to open the file or document known as the “PDF User Password” and the other password that limits printing and altering, known as the “PDF Owner Password.” Customary PDF Password Security A PDF file may be encrypted for security, or digitally signed for authentication. Most importantly, one can restrict their PDF file from copying and editing in order to prevent any misuse or mishandling of information by setting a password. We already know that PDF files are easy to read it doesn´t change the format after opening, and it´s supported by any operating system.
