Was unable to register the font on PRD.
I created a "libfont.properties" file and dropped it in to the "resources" folder in PRD.
The "libfont.properties" defines the following property
org.pentaho.reporting.libraries.fonts.extra-font-dirs.mydir=/home/e-cuellar/CHOWFUN_.TTF (As it says I have the CHOWFUN_.TTF on my home folder)
I started PRD and I do not see the Chowfun in the fonts list.
I also attempted modifying the "libfont.properties" inside the libfonts jar file and did not work either.