ttembed-js

This module removes embedding limitations from TrueType fonts, by setting the fsType field in the OS/2 table to zero (Installable Embedding mode).

Note that using this to embed fonts which you are not licensed to embed does not make it legal.

This version is written by Greg Littlefield and based heavily upon the work of Paul Flo Williams (https://github.com/hisdeedsaredust/ttembed), which is based upon the work of Tom Murphy VII (http://carnage-melon.tom7.org/embed/).

All versions of this code so far are public domain. Use at your own risk...

Installation

Install globally via npm:

npm install -g ttembed-js 

Usage (CLI)

Command line interface is similar to Paul Flo Williams's version, except only one file argument is permitted.

Usage: ttembed-js [OPTION] FILE
Remove embedding limitations from a Truetype font file.

  -n                           dry run; don't modify the file
  -h, --help                   display this help and exit

Usage (module)

By default, ttembed modifies the specified file, switching it to Installable Embedding mode.

var ttembed = require('ttembed-js');
 
ttembed({
    filename: './path/to/my_font.ttf'
}, function(error, oldFsType) {
    if (error) {
        console.error('Something went wrong.', error);
        return;
    }
    if (oldFsType === '0000') {
        console.log('fsType is already 0000; no action taken.');
    } else {
        console.log('fsType successfully changed from ' + oldFsType + ' to 0000.');
    }
});

The config can be augmented with a dryRun property, which parses the font and reads the fsType without modifying the file.

var ttembed = require('ttembed-js');
 
ttembed({
    filename: './path/to/my_font.ttf',
    dryRun: true
}, function(error, fsType) {
    if (error) {
        console.error('Something went wrong.', error);
        return;
    }
    if (fsType === '0000') {
        console.log('fsType is 0000; no action will be taken if run with {dryRun: false}.');
    } else {
        console.log('fsType is ' + fsType + '; running again with {dryRun: false} will modify the file.');
    }
});