free hangul fonts

font setting references

/etc/fonts/conf.avail/29-language-selector-ko-kr.conf

<fontconfig>
<!-- Turn on antialias and hinting with hintslight -->
<match target="font" >
   <edit mode="assign" name="antialias">
      <bool>true</bool>
   </edit>
   <edit mode="assign" name="hinting">
      <bool>true</bool>
   </edit>
   <edit mode="assign" name="hintstyle">
      <const>hintslight</const>
   </edit>
</match>
 
<!-- Turn off hinting for some Korean fonts -->
<match target="font">
   <test name="family" compare="contains">
      <string>백묵</string>
   </test>
   <edit name="hinting" mode="assign">
      <bool>false</bool>
   </edit>
</match>
</fontconfig>

리눅스 데스크탑 글꼴 설정(우분투 Hardy Heron 8.04 기준)in ubuntu korea forum
Font Configin KLDP wiki

fontyPython