When MarkMagic PI is installed, a large selection of default fonts are installed in the location where the H2 database is configured to be created.  The font files can be found in the ../MarkMagic/fonts directory.  In rare cases where a custom font is required, a user can upload the true type (.ttf) file using this interface.  Simply click the Choose File button, browse your computer for the .ttf file and then click Submit.  The font file will be copied to the ../MarkMagic/fonts folder on the server.