I have a protected PDF file, in which I cannot highlight text using Preview and which I cannot print without a password.
I do know a password, but I cannot understand how to remove it from the document. I can click File > Enter Password and then Unlock as Owner, but the next time I open the document, it will be required to type the password again. How to do this?
Thanks, but maybe there is a way to remove the password without installing third-party tools? (Of course, this is OK to use a third-party tool to unlock a PDF file if I don’t know the password, but I do know the password, and using third-party tools looks as something that I would prefer to avoid.)
Most Mac users tend to overlook Preview and try to find substitute apps right away. For no good reason! Preview is a powerful app installed on your Mac by default and can perform most PDF manipulations you’ll ever need.
One of those is simple PDF unlocking, which you can essentially do by opening a PDF file and exporting it as PDF one more time. The duplicate PDF then won’t have password protection.
Here’s how to remove password protection from PDF with Preview:
Launch Preview and open your password-protected PDF