Additionnal fonts can be necessary to display some web pages or documents.
It is possible to add new fonts to the system using a font file (fontname.ttf), to do so you need to create a folder with the name of the font in lower case in /usr/share/font then copy the fontname.ttf file into the folder. There is two way to do so, using thunar as root :
$ sudo thunarOr doing it with in command line (open the terminal in the folder containing the .ttf file):
$ sudo mkdir /usr/share/font/fontname $ sudo cp fontfile.ttf /usr/share/font/fontname/fontname.ttf