FntSample is a tool that can be used to make font samples that show coverage
of the font and are similar in appearance to Unicode Charts.
# Support for various font formats using FreeType library, including
  TrueType, OpenType, and Type1.
# Creating samples in PDF, PostScript, and SVG formats.
# Adding outlines with Unicode block names for PDF samples.
# Selection of code ranges to show in charts.
# Comparing of two font files with highlighting of added glyphs.