Fonts are the major artworks for an OS. From old ages, there a lot of beautiful commercial fonts are being available for Windows. Linux, now getting more and more free fonts. They are competitive with the commercial fonts. We can use these fonts freely for our DTP works and other printing Jobs.
http://ubuntu.wordpress.com/2007/05/21/300-easily-installed-free-fonts-for-ubuntu/#more-312
Go here to get into the free fonts with demo images.
As usual installing the fonts packages is a breeze in ubuntu and debian families.
Just an “apt-get install” will install all your needed fonts.
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Going GNU 
thank you