Font to PNG Extractor (Supports TTF/OTF)

font_extractor.py

import shutil
from pathlib import Path

from fontTools.ttLib import TTFont
from PIL import Image, ImageDraw, ImageFont


def main():
    font_file = Path("breeze-icons.ttf")
    out_folder = Path("icon_images")

    shutil.rmtree(out_folder)
    out_folder.mkdir(parents=True, exist_ok=True)

    resources = []
    image_font = ImageFont.truetype(str(font_file), 256)
    with TTFont(font_file) as font:
        for i, name in enumerate(font.getGlyphOrder()[3:]):  # first 3 glyphs are not icons
            out_path = Path(out_folder, f"{i:04}_{name}.png")
            image = Image.new("RGBA", (256, 256), color=(255, 255, 255, 0))
            draw = ImageDraw.Draw(image)
            draw.text(
                xy=(0, 0),
                text=chr(0xf101 + i),
                fill="white",
                font=image_font,
                align="center"
            )
            image.save(out_path)
            resources.append(rf'{name.replace("-", "_").replace(".", "_")} ICON "{str(out_path.resolve())}"')

    # used by Resource Hacker to build resource file
    resource_script = "\n".join(resources)
    print(resource_script)

if __name__ == "__main__":
    main()