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ttfautohint-1.8-tty-osx.tar.gz.sig 2018-01-01 181 Bytes
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ttfautohint 1.8.1
-----------------

by Werner Lemberg <wl@gnu.org>


This project provides a library that takes a TrueType font as the input,
removes its bytecode instructions (if any), and returns a new font where all
glyphs are bytecode hinted using the information given by FreeType's
auto-hinting module.  The idea is to provide the excellent quality of the
auto-hinter on platforms that 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 Qt framework.  The
compilation of this application can be disabled with the `--without-qt'
option of the `configure' script.


Version 1.8.1 (2018-Jan-01)
---------------------------

  * Bug fix: The `configure` script couldn't recognize Qt 5.10.x.


Version 1.8 (2017-Dec-31)
-------------------------

  * A third, 'natural' stem width mode has been added: No adjustments to
    stem widths, discrete blue zone positioning.  This is what FreeType uses
    for its 'light' (auto-)hinting mode.

  * A new option `-a` has been implemented to select the stem width mode for
    the three rendering targets (grayscale, GDI ClearType, DW ClearType). 
    This supersedes option `-g`, which is now deprecated.

  * Stem widths for the hinting process can now be manually set using the
    new `width` keyword in a control instructions file.  This is especially
    useful for extra-bold fonts, where the algorithmically derived values
    are often too large, causing the filling of 'eyes' in 'e' or 'a' glyphs
    at small sizes.

  * libttfautohint gets now installed as a DLL or static library (or both,
    depending on the parameters of the `configure` script), together with
    its header files.

  * Two functions have been added to the library: `TTF_autohint_version` and
    `TTF_autohint_version_string`, which do the obvious.

  * Two options to `TTF_autohint` have been added: `alloc-func` and
    `free-func`.  These are necessary on some platforms if ttfautohint is
    compiled as a shared library, and the application uses a different
    runtime library.  This can happen, for example, on the MS Windows
    platform if your program is written in Python and communicates via the
    'ctypes' interface with the ttfautohint DLL.

  * `TTF_autohint` options
    `{gray,gdi-cleartype,dw-cleartype}-strong-stem-width` are now superseded
    by `{gray,gdi-cleartype,dw-cleartype}`-stem-width-mode` to handle the
    new natural stem width mode also.

  * Bug fix: Later control instructions now correctly overwrite earlier
    entries as documented.
Source: README, updated 2018-01-01