To add a font for an individual user, perform the following steps:
Copy the font file to the $HOME/.fonts directory of the user. If you drag the font file to the fonts:/// location in the file manager, the font file is copied to the $HOME/.fonts directory.
The fontconfig library updates the list of fonts automatically. If the list of fonts is not updated, execute the following command:
# fc-cache directory-name
For information about other options to use with the fc-cache command, see To Add a Font for All Users.