NAME

       ftlint - simple font tester

SYNOPSIS

       ftlint [options] ppem font...

DESCRIPTION

       ftlint  opens  the  given  font(s),  loads  and renders glyphs at the given ppem value.  For successfully
       rendered glyphs, it calculates the bitmap MD5 checksum for regression testing as well  as  horizonal  (X)
       and  vertical  (Y)  acutances for quality assessment.  The acutance is equal to 2.0 for monochrome bitmap
       fonts and approaches this value for hinted anti-aliased fonts.

       ppem   Size in pixels per EM.

       font   The font file(s) to test.

       This program is part of the FreeType demos package.

OPTIONS

       -f L   Use hexadecimal (not decimal) number L defined by FT_LOAD_XXX flags (default is 0).

       -r N   Set render mode to N:
              0   normal
              1   light
              2   mono
              3   horizontal LCD
              4   vertical LCD

              which corresponds to the values of the FT_RENDER_MODE_XXX enumeration (default is 0).

       -i I-J Range of glyph indices to use (default: all).

       -q     Quiet mode without the rendering analysis.

Freetype 2.11.1                                   December 2021                                        FTLINT(1)