fonttools-opentype-hinting-freezer

pyfthintfreeze CLI tool and a Python 3.x library that applies the hinting of an existing OT font to the contours of that font, at a specified PPM size, and outputs the font with modified contours.

The tool uses FreeType to run the hinting code. It works better with TTF, OTF support is buggy.

Installation

python3 -m pip install --upgrade git+https://github.com/twardoch/fonttools-opentype-hinting-freezer

Usage

NAME
    pyfthintfreeze - OpenType font hinting freezer

SYNOPSIS
    pyfthintfreeze FONTPATH <flags>

DESCRIPTION
    A tool that applies the hinting of an OT font
    to the contours at a specified PPM size,
    and outputs the font with modified contours
    (Works better with TTF, OTF support is buggy)

    Example:
    pyfthintfreeze font.ttf --ppm=14 --mode="mono"

POSITIONAL ARGUMENTS
    FONTPATH
        path to an OTF or TTF or TTC file

FLAGS
    --out=OUT
        output path, automatic if absent
    --ppm=PPM
        pixel-per-em for applying the hinting
    --subfont=SUBFONT
        subfont index in a TTC file
    --var=VAR
        NOT IMPLEMENTED variable font location as a dict
    --mode=MODE
        hinting mode: "lcd" (default), "lcdv", "mono", "light"

NOTES
    You can also use flags syntax for POSITIONAL ARGUMENTS

Examples

pyfthintfreeze CharisSIL-Regular.ttf --ppm=12 --mode="lcd"

Original CharisSIL-Regular.ttf font:

The font with hinting in LCD mode applied at 12 ppm:

pyfthintfreeze Roboto-Black.ttf --ppm=12 --mode="mono"

Original Roboto-Black.ttf font:

The font with hinting in monochrome mode applied at 12 ppm:

Credits and License

Code by Adam Twardoch and others
Licensed under the Apache 2.0 license