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Adding a Password to a PDF - RHEL 7

Title:
Date: 2023-03-15
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A very easy way of adding passwords to pdf in RHEL 7 is to use the pdftk package.

You can find the RPM at:

https://www.linuxglobal.com/pdftk-works-on-centos-7/

yum install https://www.linuxglobal.com/static/blog/pdftk-2.02-1.el7.x86_64.rpm

Once you have the package installed, adding a password becomes a one liner.

pdftk my-pdf.pdf output protected-pdf.pdf user_pw abc

I love it when things that I think are simple, are simple. I'm sure there is something much more fun going on under the hood but that is for another time.