freetype2_render

Node FreeType

A Node native addon that uses FreeType to parse font files.

FreeType is a freely available software library to render fonts. http://www.freetype.org/

Install

npm install freetype2

Usage

var fs = require('fs'),
    freetype = require('freetype2');
 
fs.readFile('/path/to/a/font.woff', function(err, buffer) {
  if (!!err) throw err;
  var fontface = freetype.parse(buffer);
  console.log(fontface);
});

The module exports a parse function, which takes the raw font file data and returns a FontFace object with the following properties:

{
  num_faces: 1,
  face_index: 0,
  face_flags: 537,
  style_flags: 2,
  num_glyphs: 233,
  family_name: 'Nexa Bold',
  style_name: 'Regular',
  num_fixed_sizes: 0,
  num_charmaps: 4,
  units_per_EM: 1000,
  ascender: 750,
  descender: -250,
  height: 1000,
  max_advance_width: 1159,
  max_advance_height: 1000,
  underline_position: -100,
  underline_thickness: 50,
  available_characters: [ 32, 33, 34, 35, ... ]
}

available_characters is an array of character values that the font maps to glyphs. Use .toString(16) to get a hex string representation.

Built for https://github.com/ericfreese/font-viewer.