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[ft-announce] Announcing ttfautohint 1.6

From: Werner LEMBERG
Subject: [ft-announce] Announcing ttfautohint 1.6
Date: Sun, 27 Nov 2016 15:22:55 +0100 (CET)

ttfautohint 1.6 has been released.

The source tarball, statically-linked binaries for Win32 (TTY and GUI) and
OS X (TTY only) are available from


Instructions to build the GUI version on OS X can be found at



PS: Downloads from will redirect to your nearest
    mirror site.  Files on mirrors may be subject to a replication
    delay of up to 24 hours.  In case of problems use


This project provides a library which takes a TrueType font as the input,
remove its bytecode instructions (if any), and return a new font where all
glyphs are bytecode hinted using the information given by FreeType's
autohinting module.  The idea is to provide the excellent quality of the
autohinter on platforms which don't use FreeType.

The library has a single API function, `TTF_autohint'; see
`lib/ttfautohint.h' for a detailed description.  Note that the library
itself won't get installed currently.

A command-line interface to the library is the `ttfautohint' program; after
compilation and installation, say

  ttfautohint --help

for usage information, or say

  man ttfautohint

to read its manual page.

A GUI to the library is `ttfautohintGUI'; it uses the Qt4 framework.  The
compilation of this application can be disabled with the `--without-qt'
configuration option.


Version 1.6 (2016-Nov-27)

* A new option `--reference` (and `--reference-index` to select a font
  within a TTC) makes ttfautohint use the blue zones from another font.
  This helps synchronize the ascenders and descenders of font families.

* Support for Armenian, Cherokee, Ethiopic, Georgian, Gujarati, Gurmukhi,
  Kannada, Malayalam, Sinhala, and Tamil scripts.

* New option `--ttfa-info` to display a font's `TTFA` table (if present).

* Glyphs covered by the fallback script are now hinted by default.
  Previously, they were scaled only.  The default fallback script `none` now
  implies hinting without script-specific blue zones (but still aligning
  stems to the grid if possible).

* The new option `--fallback-scaling` changes the behaviour of the fallback
  script from hinting to scaling (as implemented in previous versions).

* ttfautohint (but not ttfautohintGUI) now honours the SOURCE_DATE_EPOCH
  environment variable for reproducible builds.  This corresponds to the new
  library option `epoch`.

* Bug fix: Allow dehinting of fonts that contain a `.ttfautohint` glyph.

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