How to Protect Documents and PDFs with Owner and User Passwords in Excel
There are two ways to protect a PDF file: owner password and user password. We will explain the purpose of each of them and show how to apply them to your PDF files. Owner Password or Permissions allows you to apply permissions to the PDF file. For example, if you do not want to allow printing of a PDF file or extracting pages, you can choose what you want to allow rather than allow and apply the owner password to the PDF file. The owner password can also be called a master password. This is what allows you to change these permissions. User or Open password allows you to require the user to enter a password even to view PDF. If they do not enter the correct password, the PDF file will not open. There are several online services for protecting PDF files, such as PDFBeaver, but if you want to add a password to a confidential document, you are probably not comfortable uploading it to an unknown service. So, in this guide we will focus on the best offline mode. We looked ...