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:

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.