Extract the ttf file and copy into .fonts via:

  1. Go to your home folder
  2. Enable "Show Hidden Files" option from Nautilus View menu
  3. Then create new folder with name .fonts (with dot in front)
  4. Now in new folder copy all your true type fonts. If you want to copy your Windows fonts, you can find it in Windows/Fonts folder.
  5. Now restart and new fonts will be in use.