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5172
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This file contains a list of various font formats. It gives the
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reference document and whether it is supported in FreeType 2.
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file type:
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The only special case is `MAC'; on older Mac OS versions, a `file'
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is stored as a data and a resource fork, this is, within two
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separate data chunks. In all other cases, the font data is stored
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in a single file.
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wrapper format:
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The format used to represent the font data. In the table below it
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is used only if the font format differs. Possible values are `SFNT'
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(binary), `PS' (a text header, followed by binary or text data),
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`LZW' (compressed with either `gzip' or `compress'), and
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`BZ2' (compressed with `bzip2`).
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font format:
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How the font is to be accessed, possibly after converting the file
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type and wrapper format into a generic form. Bitmap formats are
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`BDF', `PCF', and one form of `WINFNT'; all others are vector
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formats.
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font type:
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Sub-formats of the font format. `SBIT' and `MACSBIT' are bitmap
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formats, `MM' and `VAR' support optical axes.
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glyph access:
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If not specified, the glyph access is `standard' to the font format.
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Values are `CID' for CID-keyed fonts, `SYNTHETIC' for fonts which
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are modified versions of other fonts by means of a transformation
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matrix, `COLLECTION' for collecting multiple fonts (sharing most of
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the data) into a single file, and `TYPE_0' for PS fonts which are to
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be accessed in a tree-like structure.
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FreeType driver:
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The module in the FreeType library which handles the specific font
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format. A missing entry means that FreeType doesn't support the
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font format (yet).
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Please send additions and/or corrections to wl@gnu.org or to the
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FreeType developer's list at freetype-devel@nongnu.org (for subscribers
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only). If you can provide a font example for a format which isn't
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supported yet please send a mail too.
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file wrapper font font glyph FreeType reference
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type format format type access driver documents
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----------------------------------------------------------------------------
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--- --- BDF --- --- bdf 5005.BDF_Spec.pdf, X11
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--- SFNT PS TYPE_1 --- type1 Type 1 GX Font Format
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(for the Mac) [3]
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MAC SFNT PS TYPE_1 --- type1 Type 1 GX Font Format
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(for the Mac) [3]
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--- SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac)
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[3]
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MAC SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac)
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[3]
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--- SFNT PS CFF --- cff OT spec, 5176.CFF.pdf
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(`OTTO' format)
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MAC SFNT PS CFF --- cff OT spec, 5176.CFF.pdf
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(`OTTO' format)
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--- SFNT PS CFF CID cff OT spec, 5176.CFF.pdf
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MAC SFNT PS CFF CID cff OT spec, 5176.CFF.pdf
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--- SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf
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MAC SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf
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--- SFNT TT SBIT --- sfnt XFree86 (bitmaps only;
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with `head' table)
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--- SFNT TT MACSBIT --- sfnt OT spec (for the Mac;
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bitmaps only; `bhed' table)
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MAC SFNT TT MACSBIT --- sfnt OT spec (for the Mac;
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bitmaps only; `bhed' table)
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--- SFNT TT --- --- truetype OT spec (`normal' TT font)
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MAC SFNT TT --- --- truetype OT spec (`normal' TT font)
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MAC SFNT TT VAR --- truetype GX spec (`?var' tables)
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--- SFNT TT --- COLLECTION truetype OT spec (this can't be CFF)
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MAC SFNT TT --- COLLECTION truetype OT spec (this can't be CFF)
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--- --- PS TYPE_1 --- type1 T1_SPEC.pdf
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(`normal' Type 1 font)
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MAC --- PS TYPE_1 --- type1 T1_SPEC.pdf
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(`normal' Type 1 font)
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--- --- PS TYPE_1 CID cid PLRM.pdf (CID Font Type 0;
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Type 9 font)
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--- --- PS MM --- type1 5015.Type1_Supp.pdf
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(Multiple Masters)
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--- --- PS CFF --- cff 5176.CFF.pdf (`pure' CFF)
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--- --- PS CFF CID cff 5176.CFF.pdf (`pure' CFF)
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--- --- PS CFF SYNTHETIC --- 5176.CFF.pdf (`pure' CFF)
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--- PS PS CFF --- --- PLRM.pdf (Type 2) [1]
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--- PS PS CFF CID --- PLRM.pdf (Type 2) [1]
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--- PS PS CFF SYNTHETIC --- PLRM.pdf (Type 2) [1]
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--- --- PS --- TYPE_0 --- PLRM.pdf
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--- --- PS TYPE_3 --- --- PLRM.pdf (never supported)
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--- --- PS TYPE_3 CID --- PLRM.pdf (CID Font Type 1;
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Type 10 font; never supported)
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--- PS PS TYPE_14 --- --- PLRM.pdf (Chameleon font;
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Type 14 font; never supported?)
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--- --- PS TYPE_32 CID --- PLRM.pdf (CID Font Type 4;
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Type 32 font; never supported?)
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--- PS TT --- --- type42 5012.Type42_Spec.pdf
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(Type 42 font)
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--- PS TT --- CID --- PLRM.pdf (CID Font Type 2;
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Type 11 font)
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--- ? ? CEF ? cff ?
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--- --- PCF --- --- pcf X11 [4]
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--- LZW PCF --- --- pcf X11 [4]
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--- BZ2 PCF --- --- pcf X11 [4]
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--- --- PFR PFR0 --- pfr [2]
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--- --- PFR PFR1 --- --- (undocumented, proprietary;
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probably never supported)
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--- --- WINFNT --- --- winfonts MS Windows 3 Developer's Notes
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--- --- WINFNT VECTOR --- --- MS Windows 3 Developer's Notes
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[1] Support should be rather simple since this is identical to `CFF' but
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in a PS wrapper.
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[2] Official PFR specification:
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http://www.bitstream.com/categories/developer/truedoc/pfrspec.html
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http://www.bitstream.com/categories/developer/truedoc/pfrspec1.2.pdf
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The syntax of the auxiliary data is not defined there, but is
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partially defined in MHP 1.0.3 (also called ETSI TS 101812 V1.3.1)
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section 7.4.
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http://www.etsi.org/
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http://webapp.etsi.org/workprogram/Report_WorkItem.asp?WKI_ID=18799
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(free registration required).
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[3] Support is rudimentary currently; some tables are not loaded yet.
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[4] See
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THE X WINDOW SYSTEM SERVER: X VERSION 11, RELEASE 5
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Elias Israel, Erik Fortune, Digital Press, 1992
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ISBN 1-55558-096-3
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for a specification given in Appendix D on pgs. 436-450. However,
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this information might be out of date; unfortunately, there is no
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PCF specification available online, and this book is out of print.
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George Williams deduced the font format from the X11 sources and
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documented it for his FontForge font editor:
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http://fontforge.sourceforge.net/pcf-format.html
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------------------------------------------------------------------------
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Copyright 2004, 2005, 2008, 2009, 2010 by
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David Turner, Robert Wilhelm, and Werner Lemberg.
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This file is part of the FreeType project, and may only be used,
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modified, and distributed under the terms of the FreeType project
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license, LICENSE.TXT. By continuing to use, modify, or distribute this
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file you indicate that you have read the license and understand and
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accept it fully.
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--- end of formats.txt ---
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