is there a programme that will let me add a password to a pdf file

English Applications
1

using plasma5

thanks

2

pdftk
https://unix.stackexchange.com/questions/187404/how-to-set-password-for-pdf-files

There also seems to be a gui that you can use called pdftk-qgui that is available in the Packman Repo.
http://packman.links2linux.org/package/pdftk-qgui/736374

3

Many thanks I will give that a go.

4

Thanks. Works perfectly.