Freetype is a library that can be used by applications to access the contents of font files. It provides a uniform interface to access font files. It supports both bitmap and scalable formats, including TrueType, OpenType, Type1, CID, CFF, Windows FON/FNT, X11 PCF, and others. It supports high-speed anti-aliased glyph bitmap generation with 256 gray levels.

This library can read Open Type Layout Tables from an OTF file. Currently these tables are supported; head, name, cmap, GDEF, GSUB, and GPOS. It can convert a Unicode character sequence to a glyph code sequence by using the above tables.

This package provides Python bindings for the Path Ops module of the Skia library, performing boolean operations on paths (intersection, union, difference, xor).

This package provides the cffsubr command, a Compact Font Format (CFF) subroutinizer based on the Adobe Font Development Kit for OpenType (AFDKO) tx tool.

statmake takes a user-written Stylespace that defines OpenType STAT information for an entire font family and then (potentially subsets and) applies it to a specific variable font. This spares users from having to deal with raw TTX dumps and juggling with nameIDs.

GNU fontopia is an easy-to-use, text-based, console font editor. You can edit the fonts that your GNU/Linux kernel is using to display your text on text- based (vs graphical) terminals.

The ufoLib2 Python library is meant to be a thin representation of the Unified Font Object (UFO) version 3 data model, intended for programmatic manipulation and fast batch processing of UFOs. It resembles the defcon library, but does without notifications, the layout engine and other support classes. Where useful and possible, ufoLib2 tries to be API-compatible with defcon.

This package provides an API with data about glyph sets for many different scripts and languages.

ttfautohint provides a 99% automated hinting process and a platform for finely hand-hinting the last 1%. It is ideal for web fonts and supports many scripts.

Nototools is a Python package containing Python scripts used to maintain the Noto Fonts project.

Potrace is a tool for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image. The input is a bitmap (PBM, PGM, PPM, or BMP format), and the default output is an encapsulated PostScript file (EPS). A typical use is to create EPS files from scanned data, such as company or university logos, handwritten notes, etc. The resulting image is not "jaggy" like a bitmap, but smooth. It can then be rendered at any resolution.

This library provides functions which take in UFO objects (such as Defcon Fonts or Robofab RFonts) and converts any cubic curves to quadratic. The most useful function is probably fonts_to_quadratic.

This package provides a tool that can be used to make font samples that show coverage of the font and are similar in appearance to Unicode Charts. It was developed for use with DejaVu Fonts project.

This package also includes the pdfoutline script, which can be used to modify outlines (machine-readable tables of contents) in PDF files.

This package provides a collection of Python classes implementing the pen protocol for manipulating glyphs.

Birdfont is a font editor which can create vector graphics and export TTF, EOT, and SVG fonts. It includes a graphical as well as a commandline interface.

fcft is a small font loading and glyph rasterization library built on-top of FontConfig, FreeType2 and pixman.

It can load and cache fonts from a fontconfig-formatted name string, e.g. Monospace:size=12, optionally with user configured fallback fonts.

After a font has been loaded, you can rasterize glyphs. When doing so, the primary font is first considered. If it does not have the requested glyph, the user configured fallback fonts (if any) are considered. If none of the user configured fallback fonts has the requested glyph, the FontConfig generated list of fallback fonts are checked.

ufo2ft (UFO to FontTools) is a fork of ufo2fdk intended to leverage FontTools (a Python library) rather than the Adobe Font Development Kit for OpenType (AFDKO), a set of C libraries/utilities so that it can be more easily extended. Like ufo2fdk, its primary purpose is to generate OpenType font binaries from Unified Font Objects (UFOs).

PSF is the simple monospaced bitmap font format used by the Linux kernel for console fonts. The PSF Tools convert between PSF and many other font formats, similar to what the NetPBM package does for images.

It includes converters for a good number of common bitmap font formats such as .BDF, .FNT, and .FON files, Berkeley vfonts, classic Amstrad/Sinclair/Hercules/BBC Micro soft fonts, and raw (DOS-style) fonts.

It also supports less traditional formats such as PBM/XBM images, plain text (for rudimentary editing), and C header files.

Raph Levien's Spiro package as a library. A mechanism for drawing smooth contours with constant curvature at the spline joins.

The OpenType Sanitizer (OTS) parses and serializes OpenType files (OTF, TTF) and WOFF and WOFF2 font files, validating them and sanitizing them as it goes.

FontoBene-Qt is a header-only library to parse FontoBene stroke fonts with C++11/Qt.

This package provides two tools:

sfnt2woff

Converts OpenType fonts to WOFF fonts

woff2sfnt

Converts WOFF fonts to OpenType fonts

Boolean operations on paths which uses a super fast polygon clipper library by Angus Johnson.

This Python package processes and generates instances for UFO files, glyphs and other data. It can, among other things:

• Collect source materials.

• Provide mutators for specific glyphs, font info, kerning so that other tools can generate partial instances.

• Support designspace format 4 with layers.

• Apply avar-like designspace bending.

• Apply rules.

• Generate actual UFO instances in formats 2 and 3.

• Round geometry as requested.