prawnpdf/ttfunk

Font Metrics Parser for Prawn

Ruby

144

291 commits

updated Apr 18, 2026

See the code

README

TTFunk

Maintained: yes CI status

TTFunk is a TrueType and OpenType font library written in pure ruby. It supports both parsing and encoding of fonts. Also provides limited font subsetting.

Installation

The recommended installation method is via Rubygems.

gem install ttfunk

Usage

Basic usage:

require 'ttfunk'

file = TTFunk::File.open("some/path/myfont.ttf")
puts "name    : #{file.name.font_name.join(', ')}"
puts "ascent  : #{file.ascent}"
puts "descent : #{file.descent}"

For more detailed examples, explore the examples directory.

Licensing

Matz's terms for Ruby, GPLv2, or GPLv3. See LICENSE for details.

Authorship

This project is maintained by the same folks who run the Prawn PDF project.

Here's the full list of Github users who have at least one patch accepted to TTFunk.

Community support

TTFunk is maintained as a dependency of Prawn, the ruby PDF generation library.

Any questions or feedback should be sent to the Prawn Discussions group.

afm
dfont
fonts
ruby
ttc
ttf

prawnpdf/ttfunk

Font Metrics Parser for Prawn

Ruby

144

291 commits

updated Apr 18, 2026

See the code

README

TTFunk

Maintained: yes CI status

TTFunk is a TrueType and OpenType font library written in pure ruby. It supports both parsing and encoding of fonts. Also provides limited font subsetting.

Installation

The recommended installation method is via Rubygems.

gem install ttfunk

Usage

Basic usage:

require 'ttfunk'

file = TTFunk::File.open("some/path/myfont.ttf")
puts "name    : #{file.name.font_name.join(', ')}"
puts "ascent  : #{file.ascent}"
puts "descent : #{file.descent}"

For more detailed examples, explore the examples directory.

Licensing

Matz's terms for Ruby, GPLv2, or GPLv3. See LICENSE for details.

Authorship

This project is maintained by the same folks who run the Prawn PDF project.

Here's the full list of Github users who have at least one patch accepted to TTFunk.

Community support

TTFunk is maintained as a dependency of Prawn, the ruby PDF generation library.

Any questions or feedback should be sent to the Prawn Discussions group.

afm
dfont
fonts
ruby
ttc
ttf

Project health

Overall

3.2/10

Maintained

0/10

Code review

1/10
OpenSSF Scorecard

RubyGems

Latest release

1.8.0 · Mar 5, 2024

Releases this year

0

Significant stargazers

Johnny Shields

102 followers · starred Feb 2018

Lee Dohm

820 followers · starred Sep 2011