FreeType
FreeType is a software development library, available in source and binary forms, used to render text on to bitmaps and provides support for other font-related operations. As such, the source code is an implementation of a font rasterization engine. A number of font formats, including TrueType, Type 1, and OpenType, are supported. The current version "is designed to be small, efficient, highly customizable, and portable while capable of producing high-quality output (glyph images)."
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