I have downloaded a truetype font and I want to install it, but I dont know how.

I've copied the two .ttf files (one for regular and one for bold) to /usr/share/fonts/truetype and went to that directory and than did mkfontscale and mkfontdir. I have restarted my computer since, but the font does not appear in any of the editors I want to use it with.

What should I do?