The longer and more complex your password is, the stronger password strength it will be. Note: The password you enter should be at least six characters long. Then type a password, re-type the same password as a confirmation. Select whether you want to require the user to enter a password for viewing or editing. Go to File > Protect Using Password, or you can go to Tools > Protect > Protect Using Password. Open the target PDF file in Adobe Acrobat. Follow the detailed steps below, and encrypt your PDF files step by step.
Since most of the users are using Adobe Acrobat or Adobe Reader to create and edit PDF files, the first method we'd like to share is how to add a password within Adobe software. No matter what you need, you can find solutions in our post. In this article, we will introduce all the possible PDF encryption methods, including how to add a password to PDF in Adobe, how to add a password to PDF with a third-party tool, and how to add password to PDF on Mac. Anyone without a password will not be able to read or edit your PDF file. When you add a password to your PDF file, it helps you protect private information and sensitive data. PDF encryption is the process of encoding the PDF file so that it remains hidden from or inaccessible to unauthorized users.
