TTFEdit is a GPL editor for TrueType fonts. TrueType is a standard used by modern operating systems like Mac OS X, Windows XP and Linux. There are two different TrueType specifications: from Apple (original author of this technology) and from Microsoft. Mac OS X and Windows XP use own font rendering engines, there is also FreeType library used by Linux. On these three systems the same font will generally look different. TTFEdit tries to produce TTF files compatible with all mentioned systems.
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