3 * Improved script support. Besides Cyrillic and Greek, which are now
4 handled separately from Latin, ttfautohint can handle Hebrew.
6 * Option `-f' now takes a parameter to specify the fallback script. The
7 corresponding long option name has been renamed from `--latin-fallback' to
10 * Work around a bug in display environments that use FreeType 2.5.0 and
11 earlier for rendering: Sometimes, the `strong' stem width routine was used
12 for DW ClearType (this is, subpixel hinting in FreeType is enabled) even
13 if `smooth' was selected while generating the font with ttfautohint.
18 * Option `--components' has been replaced with `--composites': By default,
19 the components of a composite glyph are now hinted separately, since tests
20 has shown that this gives good results in most cases. If this option is
21 set, however, the composite glyph itself gets hinted (and the hints of the
22 components are ignored).
24 An unfortunate side effect is that ttfautohint's option `-c' (which stays
25 as a shorthand for `--composites') now does exactly the opposite as in
28 * Older versions of Monotype's `iType' bytecode interpreter have a serious
29 bug: The DIV instruction rounds the result, while the correct operation is
30 truncation. This caused `exploding characters' with fonts hinted by
31 ttfautohint. Since many printers contain this rasterizer without any
32 possibility to update to a non-buggy version, ttfautohint now contains
33 work-arounds to circumvent the problem.
35 * Better support for glyphs where some points have almost the same position
36 (for example glyph `Oslash' in font `Roboto-Thin').
38 * Better support for glyphs which use explicit `on' points around round
44 * New option `--dehint' to strip off all hints without generating new hints.
45 This option is intended for testing purposes.
47 * Minor fixes to the created bytecode for compatibility.
49 * Minor GUI improvements.
54 * New option `--windows-compatibility' which adds two artificial blue zones
55 at vertical positions given by `usWinAscent' and `usWinDescent'. This
56 helps ttfautohint's hinting algorithm reduce the possibility of clipping
57 if those two values are very tight.
59 * Implement option `--x-height-snapping-exceptions', making ttfautohint
60 avoid x-height snapping for selected PPEM values. Useful in combination
61 with `--windows-compatibility'.
63 * Minor fixes to the created bytecode for compatibility and robustness.
68 * New option `--components' to treat components of composite glyphs
69 separately. This greatly reduces the bytecode size.
71 I'm waiting for reports whether this option works for most fonts; in case
72 this is true I'm inverting the option, making it the default (and the old
75 * Full support of TTCs, this is, all subfonts get auto-hinted now.
77 * The upper limit of the `--increase-x-height' option has been removed.
79 * Drag-and-drop support in the GUI.
81 * The TTY version of ttfautohint now acts like a (Unix) filter, this is, it
82 accepts stdin and stdout as input and output, respectively.
84 * Less memory consumption.
89 * A serious bug in the created bytecode has been fixed, causing incorrect
95 * A new, `strong' routine to handle stem widths and positions has been
96 added, to be selected with the `--strong-stem-width' command line option.
97 If it is active, stem widths and positions are snapped to the grid as much
98 as possible. This algorithm is useful for GDI ClearType support.
100 * A new command line option `--debug' (not available for ttfautohintGUI) to
101 print very detailed debugging information.
106 * The created bytecode has been reduced in size, making it approx. 20%
109 * New option `--symbol' to use standard stem height and width values instead
110 of using character `o' (which may be missing). Use this option for symbol
111 fonts or math glyphs.
113 * More documentation (in text, HTML, and PDF format). It's still
116 * Option `--ignore-permissions' has been renamed to `--ignore-restrictions'.
117 The short form is still `-i'.
119 * Defaults for various parameters have been set to more sensible values:
121 hinting-range-max: 50 (was 1000)
122 hinting-limit: 200 (was 1000)
124 * Option `--increase-x-height' now has a mandatory argument (in the range
125 6-20 or value 0 to disable it, default value is 14).
130 * Implement option `-x' to increase the x height of the font for small PPEM
131 values by rounding up far more often then rounding down.
133 * Add option `-G N' to switch off hinting completely above value N.
135 * ttfautohint now appends version information and the used parameters to the
136 `Version' field(s) in the `name' table. This can be suppressed with
142 * A GUI has been added, using the Qt framework. The binary is called
148 * The improved handling of composite glyphs in 0.6 was buggy under certain
149 circumstances, making ttfautohint crash and FontValidator complain.
151 * Dropout handling has been activated.
156 * Improved handling of composite glyphs.
158 * Implement option `-p' to pre-hint glyphs with original hints before
159 conversion takes place.
161 * Don't add a DSIG table if there is none in the input font.
163 * Human-readable error messages instead of hexadecimal error codes.
165 * Better tests (both at runtime and compile time) to reject too old FreeType
171 * Rendering on iOS is now expected to give good results.
173 * No bad rendering at very large PPEM values.
178 * The bytecode has been changed to `create' twilight points. This should
179 avoid rendering artifacts on some platforms.
184 * Fix font generation; sometimes the `glyf' table was one byte too short,
185 making the font invalid.
190 * Fix bytecode bugs which prevented correct rendering on some platforms.