t1lib-1.3.1: description + notes
t1lib is a library distributed under the GNU General Public Library License for generating character-
and string- glyphs from Adobe Type 1 fonts under UNIX. t1lib uses most of the code of the X11 rasterizer donated by IBM to the X11- project. But some disadvantages of the rasterizer being included in X11 have been eliminated. Here are some of the features:
- t1lib is completely independent of X11 (although the program provided for testing the library needs X11)
- fonts are made known to library by means of a font database file at runtime
- searchpaths for all types of input files are configured by means of a configuration file at runtime
- characters are rastered as they are needed
- characters and complete strings may be rastered by a simple function call
- when rastering strings, pairwise kerning information from .afm-files may optionally be taken into account
- an interface to ligature-information of afm-files is provided
- a program to generate afm-files from Type 1 font files is included
- rotation and arbitrary transformations are supported
- there's support for extending and slanting fonts
- underlining, overlining and overstriking is supported
- new encoding vectors may be loaded at runtime and fonts may be reencoded using these encoding vectors
- antialiasing is implemented
- Right-To-Left typesetting is supported
- Font subsetting is easily possible
- support of composite character information
- An interactive test program called "xglyph" is included in the distribution. This program allows to test all of the features of the library. It requires X11.
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