1FTLINT(1)                   General Commands Manual                  FTLINT(1)
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NAME

6       ftlint - simple font tester
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SYNOPSIS

9       ftlint [options] ppem font...
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DESCRIPTION

12       ftlint  opens  the given font(s), loads and renders glyphs at the given
13       ppem value.  The shape complexity of outline glyphs are examined  based
14       on  their  taxicab  perimeters: the higher the number, the more complex
15       the shape.  For successfully rendered glyphs, it calculates the  bitmap
16       MD5  checksum for regression testing as well as horizontal (X) and ver‐
17       tical (Y) acutances for quality assessment.  The acutance is  equal  to
18       2.0  for  monochrome  bitmap fonts and approaches this value for hinted
19       anti-aliased fonts.
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21       ppem   Size in pixels per EM.
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23       font   The font file(s) to test.
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25       This program is part of the FreeType demos package.
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OPTIONS

28       -f L   Use hexadecimal (not decimal) number L  defined  by  FT_LOAD_XXX
29              flags (default is 0).
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31       -r N   Set render mode to N:
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33              0   normal
34              1   light
35              2   mono
36              3   horizontal LCD
37              4   vertical LCD
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39              which  corresponds  to the values of the FT_RENDER_MODE_XXX enu‐
40              meration (default is 0).
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42       -i I-J Range of glyph indices to use (default: all).
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44       -q     Quiet mode without the rendering analysis.
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48FreeType 2.13.1                    June 2023                         FTLINT(1)