Useful Tips

Protect PDF documents with passwords

Did you have to print something in the office on the local network or on a shared printer, running from floor to floor to get to the printer while printing? You may not want other people to see what you are printing because it is sensitive data or personal information. In order to protect their documents, printers supporting document storage technology are installed in many offices. Files will be available for printing in the storage until you print them directly from the printer. In addition, they can be password protected, which means that only you can unlock them for printing.

Password Security Basics

You can restrict access to a PDF document using passwords or restrictions on certain functions, such as printing and editing. However, it is not possible to prevent the saving of PDF copies. However, copies have the same limitations as the original PDF. Two types of passwords are used:

Password to open the document

If a password is set to open the document (also called custom password), the user must enter it when opening the PDF document.

Password for changing access rights

If a password is set to change permissions (also called the main password), it must be entered when changing the authority. A password for changing permissions allows you to restrict the printing, editing, and copying of the contents of a PDF document. Recipients can open a document in Reader or Acrobat without entering a password. However, to change the restrictions imposed, they will need to enter a password.

If the PDF file is protected by two types of passwords, then this file can be opened by entering any of the specified passwords. At the same time, to change access to functions with limited access, the user must enter a password to change access rights. In order to provide a higher level of protection, it is advisable to set both types of passwords.

You cannot add passwords to a signed or certified document.