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Chapter 6: Font Formats, Glyph Sets, and Font Tools
e rst commercial products to support the Adobe Type 1 Coprocessor were Oki Elec-
tric’s series of PostScript Level 2 Japanese printers: the ML800PSII LT, ML801PSII, and
ML801PSII+F. ey were introduced to the market in January 1993. Other printer manu-
facturers have also shipped products that include the Adobe Type 1 Coprocessor. It is
important to note that T1C is no longer being developed, and as a result does not support
Type 2 charstrings as used by CFF.
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Now, given the current PDF-based document workow that eliminates the need for printer-
resident fonts, accelerating the performance of PostScript fonts or of fonts in general can
be accomplished through the use of a faster computer or a faster network connection.
TrueType Font Formats
TrueType fonts, like PostScript fonts, are described mathematically as outlines, and are
therefore fully scalable. TrueType curves are represented as quadratic splines. TrueType
fonts are able to reside on PostScript printer hard disks, or in printer RAM or ROM, be-
cause the Type 42 font format denes a PostScript wrapper for TrueType fonts.
Many TrueType fonts are also available in Type 1 format—many type vendors market
their fonts in both formats to appeal to those dedicated to a particular format.
TrueType CJKV fonts are a more recent addition to TrueType font technology, and are ...