OpenType - Knowledge

526: 1454:" (外字, Japanese for "outside character"). Ideographic writing scripts such as Chinese and Japanese do not have fixed collections of characters. They use thousands of glyphs commonly and tens of thousands less commonly. Not all glyphs ever invented and used in East Asian literature have even been catalogued. A typical font might contain 8,000 to 15,000 of the most commonly used glyphs. From time to time, though, an author needs a glyph not present in the font of choice. Such missing characters are known in Japan as gaiji, and they often disrupt work. 3901: 542: 1469:(PUA). Such characters cannot be used outside the environment in which the association of the private Unicode to the glyph shape is known. Documents based on them are not portable. Other installations treat gaiji as graphics. This can be cumbersome because text layout and composition cannot apply to graphics. They cannot be searched for. Often their rendering looks different from surrounding characters because the machinery for rendering graphics usually is different from the machinery for rendering glyphs from fonts. 940:, provides complete OpenType support for compact and standard Asian fonts, Arabic, Hebrew, Indic, Thai and over 50 other worldwide languages. The application supports key OpenType tables required for line layout, such as BASE, glyph definition (GDEF), glyph positioning (GPOS), and glyph substitution (GSUB). Panorama also offers complete support for advanced typography features, such as ligatures, swashes, small caps, ornaments, ordinals, superiors, old style, kerning, fractions, etc. 510:

mechanisms. The only parts of OpenType for which variations are not supported but might potentially be useful are the 'SVG ' table for color glyphs, and the MATH table for layout of mathematical formulas. The 'SVG ' table uses embedded XML documents, and no enhancement for variation of graphic elements within the SVG documents has been proposed. However, enhancement to the COLR table in OpenType 1.9 has provided a vector format for color glyphs with support for variations.

241:), sometimes referred to as "Open Font Format Specification" (OFFS). The initial standard was technically equivalent to OpenType 1.4 specification, with appropriate language changes for ISO. The second edition of the OFF was published in 2009 (ISO/IEC 14496-22:2009) and was declared "technically equivalent" to the "OpenType font format specification". Since then, OFF and OpenType specifications have been maintained in sync. OFF is a free, publicly available standard. 4929: 1310:

internals of TeX's math rendering; in the words of Ulrik Vieth (2009): "More precisely, while XeTeX only provides access to the OpenType parameters as additional \fontdimens, LuaTeX uses an internal data structure based on the combined set of OpenType and TeX parameters, making it possible to supply missing values which are not supported in either OpenType math fonts or traditional TeX math fonts." In 2013, XeTeX also gained support for cut-ins.

1110: 760:—though a separate version of InDesign is available that supports Middle Eastern scripts such as Arabic and Hebrew. Undocumented functionality in many Adobe Creative Suite 4 applications, including InDesign, Photoshop and Illustrator, enables Middle Eastern, Indic and other languages, but is not officially supported by Adobe, and requires third-party plug-ins to provide a user interface for the features. 209:, and to create a more expressive system that handles fine typography and the complex behavior of many of the world's writing systems. The two companies combined the underlying technologies of both formats and added new extensions intended to address their limitations. The name OpenType was chosen for the joint technology, which they announced later that year. 582:, it is significant. The OpenType standard does not specify the outline data format: rather, it accommodates any of several existing standards. Sometimes terms like "OpenType (PostScript flavor)" (= "Type 1 OpenType", "OpenType CFF") or "OpenType (TrueType flavor)" are used to indicate which outline format a particular OpenType font file contains. 1403:: two new OpenType tables were added in Microsoft's implementation: the COLR table allows layered glyphs and the CPAL ("Color Palette") actually defines the colors for the layers. The multi-layer approach allows a backwards compatible implementation as well as varying the rendering depending on the color context surrounding the glyphs. According to 924:, and various sorts of ligatures, but it did not yet support contextual alternates, positional forms, nor glyph reordering as handled by Microsoft's Uniscribe library on Windows. Thus, Mac OS X 10.4 did not offer support for Arabic or Indic scripts via OpenType (though such scripts are fully supported by existing AAT fonts). 489:. The common idea of these formats is that a single font includes data to describe multiple variations of a glyph outline (sometimes referred to as "masters"), and that at text-display time, the font rasterizer is able to interpolate or "blend" these variations to derive a continuous range of additional outline variations. 501:

either. Adobe later abandoned support for the Multiple Master format. This has led to questions as to whether a re-introduction of similar technology could succeed. By 2016, however, the industry landscape had changed in several respects. In particular, emergence of Web fonts and of mobile devices had created interest in

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and later. This extension was added to the ISO standard (ISO/IEC CD 14496-22 3rd edition) in April 2014. Additional (usage) details are available in the Unicode technical report 25 and technical note 28. Some of the new technical features (not present in TeX), such as "cut-ins" (which allows kerning

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Font Variations is integrated into OpenType 1.8 in a comprehensive manner, allowing most previously-existing capabilities to be used in combination with variations. In particular, variations are supported for both TrueType or CFF glyph outlines, for TrueType hinting, and also for the OpenType Layout

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By combining related fonts into a single file, font tables that are identical can be shared, thereby allowing for more efficient storage. Also, individual fonts have a glyph-count limit of 65,535 glyphs, and a Collection file provides a "gap mode" mechanism for overcoming this limit in a single font

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In OpenType Version 1.8.3, the specification for the SVG table was revised to be more constrained, providing more clarity for implementations and better interoperability. Apple is supporting the revised specification in Safari 12, iOS 12 and macOS 10.14. The implementation in Microsoft Windows also

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OpenType 1.8 made use of tables originally defined by Apple for TrueType GX (the avar, cvar, fvar and gvar tables). It also introduced several new tables, including a new table for version 2 of the CFF format (CFF2), and other new tables or additions to existing tables to integrate variations into

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as an encoding mechanism to represent particular glyph forms for characters. Unicode did not, however, specify how text renderers should support these sequences. In late 2007, variation sequences for the Adobe-Japan1 collection were registered in the Unicode Ideographic Database, leading to a real

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Adobe, Mozilla, Google and Microsoft each submitted their color extensions for standardization thorough ISO/IEC 14496-22. The new tables for each of these were then added into OpenType version 1.7. Apple's sbix table was originally supported only in AAT fonts, but it was later added into OpenType

1481:(PostScript style outlines) form; standard OpenType tables declaring the glyph's metrics and behavior in composition; and metadata, extra information included for identifying the glyphlet, its ownership, and perhaps pronunciation or linguistic categorization. SING glyphlets can be created using 278:

encoded as characters into Unicode in October 2010. Several companies quickly acted to add support for Unicode emoji in their products. Since Unicode emoji are handled as text, and since color is an essential aspect of the emoji experience, this led to a need to create mechanisms for displaying

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also have some level of support for these tables; support is more limited in XeTeX because it uses the traditional TeX math rendering engine (thus it cannot fully use some of the new features in OpenType math that extend TeX), while LuaTeX takes a more flexible approach by changing some of the

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OpenType Layout tags are 4-byte character strings that identify the scripts, language systems, features and baselines in an OpenType Layout font. Microsoft's Layout tag registry establishes conventions for naming and using these tags. OpenType features are created by using the tags in creating

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and in seeking ways to deliver more type variants in a size-efficient format. Also, whereas the 1990s was an era of aggressive competition in font technology, often referred to as "the font wars", OpenType Font Variations was developed in a collaborative manner involving several major vendors.

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system, introduced in 1978. That system and its successors were never widely adopted by professional type designers or commercial software systems. TrueType GX and Multiple Master formats, OpenType Font Variations' direct predecessors, were introduced in the 1990s, but were not widely adopted,

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By 2001 hundreds of OpenType fonts were on the market. Adobe finished converting their entire font library to OpenType toward the end of 2002. As of early 2005, around 10,000 OpenType fonts had become available, with the Adobe library comprising about a third of the total. By 2006, every major

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However, the specification only described collection files being used in conjunction with glyphs that are represented as TrueType outlines or as bitmaps. The potential existed to provide the same storage and glyph-count benefits to fonts that use CFF-format glyphs (.otf extension). But the

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Another aspect of the gaiji problem is that of variant glyphs for certain characters. Often certain characters have been written differently over periods of time. It is not unusual for place names or personal family names to use a historical form of a character. Thus it is possible for an

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in the early 1990s. Those negotiations failed, motivating Microsoft to forge ahead with its own technology, dubbed "TrueType Open" in 1994. Adobe joined Microsoft in those efforts in 1996, adding support for the glyph outline technology used in its Type 1 fonts.

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they are used in. That way documents are portable, leaving no danger of characters in the document that cannot be displayed. Because glyphlets are essentially OpenType fonts, standard font machinery can render them. The SING specification also describes an

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OpenType and OFF already had support for monochrome bitmap glyph, so Google proposed that OFF be extended to allow for color bitmaps. Apple adopted this approach but declined to participate in extending the ISO standard. As a result, Apple added the

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Explicit support for Collections with CFF-format glyphs was incorporated into the OpenType specification in version 1.8. To reflect this more-inclusive applicability, the term "OpenType Collection" was adopted, superseding "TrueType Collection".

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clarified the envisioned roles of the palettes: first palette is used by default for "dark on light" color situations while second palette is intended for use in "light on dark" situations. Additional palettes should be selectable by the user."

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language Type 2 font format. However, the OpenType specification (pre-1.8) does not support the use of PostScript outlines in a TrueType Collection font file. After version 1.8, both formats are supported in the renamed "OpenType Collection".

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has improved support for OpenType and supports Arabic OpenType fonts. Gradually, the OpenType typography support has improved on newer Mac OS X versions (e.g., Mac OS X 10.10 can handle much better long contextual glyph substitutions).

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As a step in the creation of a font, OpenType font properties (other than the outline) can be defined using human-readable text saved in Adobe's OpenType Feature File format. OpenType Feature Files typically have a name ending in a

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CJK OTC is ~10 MB smaller than the sum of the four separate OTFs of which it is composed. The use of a Collection also allowed for combining a very large number of glyphs into a single file, as would be needed for a pan-CJK font.

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Microsoft adopted a different approach than color bitmaps. Noting existing practice on the Web of layering glyphs of different color on top of one another to create multi-colored elements such as icons, Microsoft proposed a new

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Virtually all applications and modern operating systems have basic Roman support and work with OpenType fonts just as well as other, older formats. Benefits beyond basic Roman support include extended language support through

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Since at least version 1.4, the OpenType specification had supported "TrueType Collections", a feature of the format that allows multiple fonts to be stored in a single file. Such a format is useful for distributing an entire

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conference in Warsaw. OpenType version 1.8 introduced "OpenType Font Variations", which adds mechanisms that allow a single font to support many design variations. Fonts that use these mechanisms are commonly referred to as

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The SING (Smart INdependent Glyphlets) technology that made its debut with Adobe's Creative Suite 2 allows for the creation of glyphs, each packaged as a standalone font, after a fashion. Such a packaged glyph is called a

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Script tags identify the scripts (writing systems) represented in an OpenType font. Each tag corresponds to contiguous character code ranges in Unicode. A script tag can consist of 4 or fewer lowercase letters, such as

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table that adds additional graphics capabilities. Google originally proposed the enhanced version and jointly developed it with Microsoft. The enhanced graphic capabilities include support for three types of gradients,

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Baseline tags have a specific meaning when used in the horizontal writing direction (used in the 'BASE' table's HorizAxis table), vertical writing direction (used in the 'BASE' table's VertAxis table), or both.

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feature scripts that describe how characters are to be manipulated to make the desired feature. These feature scripts can be created and incorporated into OpenType fonts by advanced font editors such as

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images within the sbix table. Google used a similar extension with embedded color bitmap images contained within a pair of tables, the CBDT and CBLC tables. The Google version is implemented in

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characters will not display correctly in an OpenType font (nor in other Unicode font formats, for that matter). However, in QuarkXPress 7, Quark offered support similar to Adobe's. Corel's

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In 2014, Adobe announced the creation of OpenType Collections (OTCs), a Collection font file that combines fonts that use CFF-format glyphs. This provided significant storage benefits for

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and later, including TextEdit and Keynote, get considerable OpenType support. Apple's support for OpenType in Mac OS X 10.4 included most advanced typographic features necessary for

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documents (supporting color but also animations) into the SVG table. The SVG table also allowed for using color palettes defined in the CPAL table. Support was first implemented in

1790:"Referencing Explanatory Report to accompany FPDAM/FDAM Submission of ISO/IEC 14496–11/Amd.2, Referenced Specification: The OpenType font format specification, version 1.4" 1740: 2402: 3439: 800:, a Mac OS X-only word processor from Redlers, claims parity in typographic features with InDesign, but also extends the support to right-to-left scripts; so does the 1434:

version 1.8. Microsoft Windows 10 Anniversary Update was the first OS to support all four color font extensions, and Microsoft Edge was the first browser to do so.

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format that includes all the data necessary for reconstituting the glyphlet in binary form. A typical glyphlet might require one to two kilobytes to represent.

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Adobe and Microsoft continued to develop and refine OpenType over the next decade. Then, in late 2005, OpenType began migrating to an open standard under the

570:(CFF) outlines in a 'CFF ' table. (The table name 'CFF ' is four characters long, ending in a space character.) CFF outline data is based on the 4514: 3855: 469:

On September 14, 2016, Microsoft announced the release of OpenType version 1.8. This announcement was made together with Adobe, Apple, and Google at the

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file. (Each font within the collection still has the 65,535 limit, however.) A TrueType Collection file would typically have a file extension of ".ttc".

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If no additional glyphs or extensive typographic features are added, OpenType CFF fonts can be considerably smaller than their Type 1 counterparts.

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Several ways to deal with gaiji have been devised. Solutions that treat them as characters usually assign arbitrary Unicode values to them in the

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structure of a TrueType font, but it adds several smartfont options that enhance the font's typographic and language support capabilities.

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Extended language support via Unicode for both OpenType and TrueType is present in most applications for Microsoft Windows (including

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Emergence of Unicode emoji created a need for TrueType and OpenType formats to support color glyphs. Apple added a color extension in

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As of 2010, the set of fonts that supported OpenType math was fairly limited. Besides Cambria Math, three free fonts were available:

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Advanced typographic "layout" features which prescribe positioning and replacement of rendered glyphs. Replacement features include

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Because of wide availability and typographic flexibility, including provisions for handling the diverse behaviors of all the world's

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4.1 and newer supports many OpenType typography features, because it began to use more sophisticated HarfBuzz text shaping library.

706: 1913:"ISO/IEC 14496-22, Second edition 2009-08-15, Information technology — Coding of audio-visual objects — Part 22: Open Font Format" 3829: 2327: 1868:"ISO/IEC 14496-22, First edition 2007-03-15, Information technology — Coding of audio-visual objects — Part 22: Open Font Format" 1747: 1518: 1013: 2725: 2625: 1912: 1867: 3259: 2964: 3447: 1890: 3576: 2723: 901:, advanced OpenType typography features, full Unicode text, layout and language support and low-level glyph rendering APIs. 3958: 3649: 1477:. The format, which Adobe has made public, is based on OpenType. The package consists of the glyph outline in TrueType or 1462:

using standard fonts to be left unable to spell correctly either their own name or the name of the place where they live.

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6.5 and below were not Unicode compliant. Hence, text in these versions of QuarkXPress that contains anything other than

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alphabet has some language-specific glyphs for certain letters, which are only preferred and are not strictly mandated.

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etc. WPF applications automatically gain support for advanced typography features. OpenType ligatures are accessible in

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CSTUG, Charles University, Prague, March 1996, Questions and Answers with Prof. Donald E. Knuth, reproduced in TUGboat

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Cross-platform font files, which can be used without modification on Mac OS, Microsoft Windows and Unix/Linux systems.

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For many purposes, such as layout, it does not matter what the outline data format is, but for some purposes, such as

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table except stroking. They also add compositing and blending modes, support for which is considered optional for the

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These tags can be used to select local variants of letters that share a single Unicode code point. For instance, the

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other parts of the font format (the HVAR, MVAR, STAT and VVAR tables; additions to the BASE, GDEF and name tables).

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These proposals were all incorporated into the third edition of OFF (ISO/IEC 14496-22:2015). Microsoft added

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of subscripts and superscripts relative to their bases) and stretch stacks have been patented by Microsoft.

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International Organization for Standardization and International Electrotechnical Commission (2009-08-15).

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A set of tables that mirrors TeX math font metrics relatively closely was added by Microsoft initially to

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to expose OpenType features to software developers, supporting both OpenType TrueType, and OpenType CFF (

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in an OpenType font may be in one of two formats: either TrueType format outlines in a 'glyf' table, or

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table in OpenType version 1.8. Microsoft implemented support for all of the different color formats in

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Advanced typographic support for Latin script languages first appeared in Adobe applications such as

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Language system tags identify the language systems supported in an OpenType font. Examples include

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Knuth, Donald E. Mathematical typography. Bull. Amer. Math. Soc. (N.S.) 1 (1979), no. 2, 337--372.

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documents to use OpenType fonts, along with most of their typographic features. Linux version of

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API for text rendering with support for multi-format text, resolution-independent outline fonts,

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table (as these are implemented in SVG as filter effects). In addition, the enhancements to the

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The alphabetic baseline for characters rotated 90 degrees clockwise for vertical writing mode.

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Apple, Google and Microsoft independently developed different color-font solutions for use in

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OpenType Font Variations re-introduces techniques that were previously developed by Apple in

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Information technology — Coding of audio-visual objects — Part 22: Open Font Format (2nd ed)

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The baseline about which mathematical characters are centered in vertical writing mode.

4856: 4783: 4763: 4753: 4725: 4695: 4655: 4282: 4145: 4130: 4071: 4061: 3900: 3833: 3179: 2741:(consent to non-chargeable online licence agreement required to download specification) 2482: 2473: 1098: 840: 812: 670: 593: 25: 4778: 3334: 4801: 4720: 4675: 4605: 4076: 3267: 3113: 2982: 2891: 2825: 2491: 1720: 1547: 1466: 1138: 921: 860: 777: 753: 383: 229:. Adoption of the new standard reached formal approval in March 2007 as ISO Standard 3925: 2217: 2197: 4687: 4640: 4479: 4426: 4287: 4097: 3921:

Information technology — Coding of audio-visual objects — Part 22: Open Font Format

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table are integrated with OpenType Font Variations, which is not possible with the

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table to their TrueType format in OS X 10.7, while Google proposed addition of the

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The baseline used by simple alphabetic scripts such as Latin, Cyrillic and Greek.

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The concept of fully parametric fonts had been explored in a more general way by

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Variations in Cyrillic cursive. Letters in same row have the same code point.

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group, which had previously (in 2003) adopted OpenType 1.4 by reference for

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and Adobe developed a different vector-based extension by adding embedded

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As of 2009, popular word processors for Microsoft Windows did not support

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The joint effort intended to supersede both Apple's TrueType and Adobe's

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Operating system and application support for layout tags varies widely.

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extension. These files can be compiled into the binary font container (

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Microsoft also added color support to fonts, first implemented in the

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fonts that Adobe and Google were jointly developing. For example, the

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introduced support for OpenType typographic features in version X6.

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need for an OpenType solution. This resulted in development of the

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table to map a glyph into a set of glyphs that are layered, and a

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subtable Format 14, which was introduced in OpenType version 1.5.

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also contributing by the time of the public announcement in 1996.

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horizontal line from which the syllabograms seem to hang in the

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A list of OpenType features with expanded descriptions is given

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The baseline about which mathematical characters are centered.

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font. Microsoft's implementation, however, relies entirely on

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supports OpenType math outside MS Office applications via the

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for supporting their new math editing and rendering engine in

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and many minor ones were developing fonts in OpenType format.

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web browser also supports some OpenType math features in its

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implementation of OpenType, is the first Microsoft Windows

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OpenType's origins date to Microsoft's attempt to license

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has so far mainly appeared in Microsoft applications in

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http://www.tug.org/TUGboat/Articles/tb17-4/tb53knuc.pdf

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Christopher Slye – OpenType feature files, ATypI 2006

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could add basic Roman support of OpenType PS fonts in

3933:: website for checking the features of OpenType fonts 2939:"UTN #28: Nearly Plain-Text Encoding of Mathematics" 1488:

The SING specification states that glyphlets are to

257:Unicode version 3.2 (published in 2002) introduced 3550:"Script and font support in Windows § Windows 8.1" 1695: 1693: 1691: 1527:, old Macintosh multilingual text rendering engine 585:OpenType has several distinctive characteristics: 334:table that can represent multi-color glyphs using 3230: 2717: 1533:, open-source, multilingual text rendering engine 1521:, multilingual text rendering engine of Macintosh 1446:In 2005, Adobe shipped a new technology in their 1374: 1216:Ideographic character face bottom edge baseline. 1141:, etc. In general, the codes are not the same as 955:project, included in free implementations of the 936:, a line layout and text composition engine from 439:specification did not explicitly allow for that. 4945: 3781:"Using color fonts for beautiful text and icons" 3005:https://www.tug.org/TUGboat/tb30-1/tb94vieth.pdf 2374:https://projecteuclid.org/euclid.bams/1183544082 2172:"SVG — The SVG (Scalable Vector Graphics) Table" 1450:applications bundle that offers a solution for " 1230:Ideographic character face right edge baseline. 1208:The same line in Tibetan vertical writing mode. 756:but does not directly support Middle Eastern or 373:OpenType 1.9 introduced a second version of the 174:The specification germinated at Microsoft, with 167:behavior. OpenType is a registered trademark of 2808:"LineServices – Murray Sargent: Math in Office" 2605:"How to Enable OpenType Ligatures in Word 2010" 1883: 1688: 1587: 1219:Ideographic character face left edge baseline. 3519: 3517: 2011: 2009: 2007: 2005: 2003: 2001: 1741:"Suitcase Type Foundry Information Guide]" 1227:Ideographic character face top edge baseline. 963:. Complex text handling is provided either by 639:, support for complex writing scripts such as 252: 219:International Organization for Standardization 4889:Intellectual property protection of typefaces 3952: 3642: 3310:"UK-TUG 2012 - TeX Gyre Math report on Vimeo" 3260:"The Latin Modern Math (LM Math) font — GUST" 2525: 2198:"Feature: COLRv1 Color Gradient Vector Fonts" 394:table all of the graphic capabilities of the 4431: 3434: 3432: 3430: 3428: 3356:"Progress of the TEX Gyre Math Font Project" 2749: 2747: 688: 669:and later support OpenType PS fonts (.otf). 3514: 3180:"MathML:Open Type MATH Table - MozillaWiki" 3118:: CS1 maint: numeric names: authors list ( 2987:: CS1 maint: numeric names: authors list ( 2896:: CS1 maint: numeric names: authors list ( 2830:: CS1 maint: numeric names: authors list ( 2773: 2577: 2571: 2510: 2400: 1998: 1725:: CS1 maint: numeric names: authors list ( 3959: 3945: 3899: 752:provides extensive OpenType capability in 4915:Punctuation and other typographic symbols 3495: 3425: 2744: 2691: 1957:"Unicode Standard Annex #28, Unicode 3.2" 1238:Ideographic em-box bottom edge baseline. 1183:Baseline tags and axes in OpenType fonts 3853: 3132: 3093: 3000: 2998: 2962: 2871: 2805: 2559:"OpenOffice Supports OpenType Fonts ..." 2472: 2138: 1670:"US Registered Trademark Number 2217574" 1252:Ideographic em-box right edge baseline. 1108: 994: 951:, OpenType rendering is provided by the 362:tables to OpenType version 1.7, and the 330:Adobe and Mozilla proposed adding a new 3727:"OpenType specification (OpenType 1.8)" 3700:"OpenType specification (OpenType 1.7)" 3491: 3489: 2421: 2340: 2325: 2164: 1700:ISO/IEC JTC 1/SC 29/WG 11 (July 2008). 1519:Apple Type Services for Unicode Imaging 1241:Ideographic em-box left edge baseline. 1104: 1101:, has been added to the specification. 1014:Adobe Font Development Kit for OpenType 647:, and advanced typographic support for 4946: 3719: 3692: 3467: 2578:Sysmäläinen, Julia (9 November 2012). 2267:"Google and Adobe's pan-CJK open font" 1441: 1372:4+). Fonts were extended with colored 1305:Besides Microsoft products, XeTeX and 1249:Ideographic em-box top edge baseline. 763: 629: 3940: 2995: 2679:"OpenType Feature File Specification" 2328:"Introducing OpenType Variable Fonts" 1702:"ISO/IEC 14496-22 "Open Font Format"" 871:character forms, kerning, line-level 809:advanced OpenType typography features 547:CFF outlines use cubic Bézier curves. 3857:SING: Adobe's New Gaiji Architecture 3486: 1612: 908:-supporting applications running on 2580:"Some Open Thoughts About OpenType" 2348:"OpenType Font Variations Overview" 2243:"Noto Sans CJK – Google Noto Fonts" 2017:"OpenType Specification Change Log" 1910: 1865: 1097:script tag, added by Microsoft for 624: 212: 13: 3408:"Apple Color Emoji – Typographica" 3335:"/tex-archive/fonts/tex-gyre-math" 1704:. chiariglione.org. Archived from 665:support OpenType TT fonts (.ttf). 458: 197:'s advanced typography technology 70:Uniform Type Identifier (UTI) 50:application/font-sfnt (deprecated) 14: 4990: 3886: 2846:"Three Typefaces for Mathematics" 1379:Tooltip Portable Network Graphics 599:Accommodates up to 65,536 glyphs. 233:14496-22 (MPEG-4 Part 22) called 4928: 4927: 3854:DeLaHunt, Jim (September 2004). 3233:"The New Font Project: TEX Gyre" 3133:Preining, Norbert (2013-06-19). 3009:http://www.ntg.nl/maps/38/03.pdf 2486:(Revised and updated ed.). 1982:"Ideographic Variation Database" 1173: 540: 531:TrueType outlines use quadratic 524: 431:(font family) in just one file. 3847: 3822: 3798: 3773: 3746: 3668: 3618: 3593: 3569: 3542: 3461: 3400: 3375: 3348: 3327: 3302: 3281: 3252: 3224: 3197: 3172: 3148: 3126: 3087: 3063: 3038: 3013: 2956: 2931: 2904: 2865: 2838: 2799: 2671: 2659: 2639: 2618: 2597: 2551: 2504: 2466: 2439: 2415: 2394: 2378: 2366: 2319: 2283: 2259: 2235: 2210: 2190: 2107: 2086: 2061: 2035: 1974: 1949: 1928: 1904: 1859: 1838: 1513:Windows Presentation Foundation 1155: 1150:Serbian and Macedonian Cyrillic 817:Windows Presentation Foundation 815:software. The text engine from 729:3.2 and later versions, etc.). 661:and all subsequent versions of 606:; positioning features include 274:Unicode version 6.0 introduced 3966: 2732:. pp. 286 (section 6.4.1) 2647:"LibreOffice 4.1 ReleaseNotes" 1936:"Publicly Available Standards" 1810: 1782: 1757: 1733: 1662: 1638: 1063: 1043: 517: 421: 269: 237:(OFF, not to be confused with 1: 4884:History of Western typography 3446:. 3 July 2013. Archived from 2626:"Windows 7 Developer's Guide" 2422:Shimada, James (2006-12-06). 1580: 1317:rendering engine used by the 207:PostScript Type 1 font format 4731:traditional point-size names 3676:"Chromatic fonts are coming" 1820:. 2005-09-01. Archived from 1543:List of typographic features 1168:list of typographic features 7: 3984:Canons of page construction 3832:. Adobe.com. Archived from 3266:(in Polish). Archived from 1792:. July 2003. Archived from 1500: 1438:conforms to this revision. 327:table to define the colors. 253:Unicode Variation Sequences 10: 4995: 3909:, Microsoft Typography at 2726:"ISO/IEC 14496-22:2009(E)" 2511:David Lemon (2017-01-27). 2401:Tamye Riggs (2014-07-30). 2300:"Special OpenType Session" 1485:'s SigMaker3 application. 1159: 881:Microsoft Office Word 2010 695:Microsoft Office Publisher 552:OpenType uses the general 462: 414:table is supported in the 188: 4923: 4907: 4839: 4792: 4746: 4686: 4569: 4509: 4467: 4444: 4412: 4372: 4361: 4306: 4260: 4212: 4164: 4141:Subscript and superscript 4096: 4087: 4037: 3974: 2628:. Code.msdn.microsoft.com 1267: 1256: 1245: 1234: 1223: 1212: 1198: 1193: 1190: 1187: 1162:OpenType feature tag list 890:, a hardware accelerated 689:Extended language support 370:("Anniversary Update"). 155:is a format for scalable 140: 126: 116: 92: 78: 68: 58: 34: 24: 16:Computer font file format 4899:Vox-ATypI classification 4029:Intentionally blank page 3756:. Microsoft Typography. 3729:. Microsoft Typography. 3702:. Microsoft Typography. 3652:. Microsoft Typography. 3135:"TeX Live 2013 released" 2783:. Microsoft Typography. 2757:. Microsoft Typography. 2701:. Microsoft Typography. 2535:. Microsoft Typography. 2350:. Microsoft Typography. 2148:. Microsoft Typography. 2019:. Microsoft Typography. 1622:. Microsoft Typography. 1620:"OpenType Specification" 1490:travel with the document 1359: 336:Scalable Vector Graphics 36:Internet media type 3926:Adobe – Fonts: OpenType 3231:Jerzy B. Ludwichowski. 3094:MurrayS3 (2012-03-03). 2963:MurrayS3 (2010-01-11). 2872:MurrayS3 (2014-04-27). 2806:MurrayS3 (2006-11-14). 2174:. Microsft Typography. 1280: 1053:, AsiaFont Studio, and 734:complex written scripts 416:Chromium browser engine 368:Windows 10 version 1607 4432: 3907:OpenType Specification 3806:"What's New in Safari" 2755:"Language System Tags" 1114: 610:, mark placement, and 380:affine transformations 30:.otf, .otc, .ttf, .ttc 3919:ISO/IEC 14496-22:2019 3387:Developer.mozilla.org 3156:"OpenType MATH Fonts" 1753:on November 18, 2006. 1112: 995:OpenType Feature File 947:environments such as 886:Windows 7 introduced 802:Classical Text Editor 732:OpenType support for 487:Multiple Master fonts 169:Microsoft Corporation 146:ISO/IEC 14496-22:2019 103:; 2 years ago 4974:Windows architecture 4769:Typographic features 2490:. pp. 209–229. 2146:"COLR — Color Table" 1574:Windows Glyph List 4 1568:Web Open Font Format 1340:. More recently the 1105:Language system tags 857:small capitalization 410:table. The enhanced 239:Web Open Font Format 101:8 December 2021 74:public.opentype-font 4894:Technical lettering 4793:Typography in other 4534:Hanging punctuation 3810:developer.apple.com 3785:blogs.microsoft.com 3708:. 22 September 2020 3474:Developer.apple.com 3160:Fred-wang.github.io 2474:Cringely, Robert X. 2073:developer.apple.com 1938:. Standards.iso.org 1442:SING gaiji solution 1184: 916:languages, such as 869:stylistic alternate 829:Compact Font Format 764:Advanced typography 746:Microsoft Publisher 630:Basic Roman support 568:Compact Font Format 279:multicolor glyphs. 259:variation selectors 26:Filename extensions 21: 4979:1996 introductions 4954:Digital typography 4857:Handwriting script 4784:Desktop publishing 4754:Character encoding 4747:Digital typography 4261:Horizontal aspects 4214:Visual distinction 4072:Widows and orphans 3581:Charlespetzold.com 3558:. 20 November 2023 3470:"Extended Bitmaps" 3337:. CTAN. 2016-05-19 2483:Accidental Empires 2069:"The 'sbix' table" 1911:ISO (2009-08-15). 1866:ISO (2007-03-15). 1676:. January 12, 1999 1558:Bitstream Panorama 1182: 1115: 861:glyph substitution 837:old-style numerals 813:desktop publishing 671:Adobe Type Manager 651:languages such as 594:character encoding 485:, and by Adobe in 418:as of version 98. 127:Extended from 19: 4941: 4940: 4688:Typographic units 4606:For position only 4505: 4504: 4357: 4356: 3605:Channel9.msdn.com 3552:. Globalization. 3289:"Package lm-math" 1893:. ISO. 2009-07-31 1848:. ISO. 2009-07-31 1548:Embedded OpenType 1467:Private Use Areas 1278: 1277: 922:old-style figures 867:, contextual and 778:Adobe Illustrator 589:Accommodates the 503:responsive design 221:(ISO) within the 150: 149: 79:Developed by 4986: 4931: 4930: 4908:Related template 4840:Related articles 4641:Phototypesetting 4495:reverse-contrast 4480:Display typeface 4437: 4414:Blackletter type 4370: 4369: 4307:Vertical aspects 4288:Sentence spacing 4098:Typeface anatomy 4094: 4093: 3961: 3954: 3947: 3938: 3937: 3903: 3898: 3897: 3895:Official website 3880: 3879: 3877: 3875: 3869: 3862: 3851: 3845: 3844: 3842: 3841: 3836:on June 27, 2008 3826: 3820: 3819: 3817: 3816: 3802: 3796: 3795: 3793: 3792: 3777: 3771: 3770: 3768: 3767: 3762:. 4 October 2021 3750: 3744: 3743: 3741: 3740: 3723: 3717: 3716: 3714: 3713: 3696: 3690: 3689: 3687: 3686: 3672: 3666: 3665: 3663: 3662: 3646: 3640: 3639: 3637: 3636: 3622: 3616: 3615: 3613: 3612: 3597: 3591: 3590: 3588: 3587: 3573: 3567: 3566: 3564: 3563: 3546: 3540: 3539: 3537: 3536: 3529:Blog.fontlab.com 3521: 3512: 3511: 3509: 3508: 3493: 3484: 3483: 3481: 3480: 3465: 3459: 3458: 3456: 3455: 3436: 3423: 3422: 3420: 3419: 3412:Typographica.org 3404: 3398: 3397: 3395: 3394: 3379: 3373: 3372: 3370: 3369: 3360: 3352: 3346: 3345: 3343: 3342: 3331: 3325: 3324: 3322: 3321: 3306: 3300: 3299: 3297: 3296: 3285: 3279: 3278: 3276: 3275: 3256: 3250: 3249: 3247: 3246: 3237: 3228: 3222: 3221: 3219: 3218: 3209: 3201: 3195: 3194: 3192: 3191: 3184:Wiki.mozilla.org 3176: 3170: 3169: 3167: 3166: 3152: 3146: 3145: 3143: 3142: 3130: 3124: 3123: 3117: 3109: 3107: 3106: 3091: 3085: 3084: 3082: 3081: 3067: 3061: 3060: 3058: 3057: 3042: 3036: 3035: 3033: 3032: 3017: 3011: 3002: 2993: 2992: 2986: 2978: 2976: 2975: 2960: 2954: 2953: 2951: 2950: 2935: 2929: 2928: 2926: 2925: 2916: 2908: 2902: 2901: 2895: 2887: 2885: 2884: 2869: 2863: 2862: 2860: 2859: 2850: 2842: 2836: 2835: 2829: 2821: 2819: 2818: 2803: 2797: 2796: 2794: 2793: 2777: 2771: 2770: 2768: 2767: 2751: 2742: 2740: 2738: 2737: 2721: 2715: 2714: 2712: 2711: 2695: 2689: 2688: 2686: 2685: 2675: 2669: 2663: 2657: 2656: 2654: 2653: 2643: 2637: 2636: 2634: 2633: 2622: 2616: 2615: 2613: 2612: 2601: 2595: 2594: 2592: 2590: 2575: 2569: 2568: 2566: 2565: 2555: 2549: 2548: 2546: 2545: 2529: 2523: 2522: 2520: 2519: 2508: 2502: 2501: 2470: 2464: 2463: 2461: 2460: 2443: 2437: 2436: 2434: 2433: 2428: 2419: 2413: 2412: 2410: 2409: 2398: 2392: 2382: 2376: 2370: 2364: 2363: 2361: 2360: 2344: 2338: 2337: 2335: 2334: 2323: 2317: 2316: 2314: 2313: 2287: 2281: 2280: 2278: 2277: 2263: 2257: 2256: 2254: 2253: 2239: 2233: 2232: 2230: 2229: 2214: 2208: 2207: 2205: 2204: 2194: 2188: 2187: 2185: 2184: 2168: 2162: 2161: 2159: 2158: 2142: 2136: 2135: 2133: 2132: 2127:. 4 October 2021 2111: 2105: 2104: 2102: 2101: 2090: 2084: 2083: 2081: 2079: 2065: 2059: 2058: 2056: 2054: 2039: 2033: 2032: 2030: 2029: 2013: 1996: 1995: 1993: 1992: 1978: 1972: 1971: 1969: 1968: 1953: 1947: 1946: 1944: 1943: 1932: 1926: 1925: 1923: 1922: 1917: 1908: 1902: 1901: 1899: 1898: 1887: 1881: 1880: 1878: 1877: 1872: 1863: 1857: 1856: 1854: 1853: 1842: 1836: 1835: 1833: 1832: 1826: 1814: 1808: 1807: 1805: 1804: 1798: 1786: 1780: 1779: 1777: 1776: 1761: 1755: 1754: 1752: 1746:. Archived from 1745: 1737: 1731: 1730: 1724: 1716: 1714: 1713: 1697: 1686: 1685: 1683: 1681: 1666: 1660: 1659: 1657: 1656: 1642: 1636: 1635: 1633: 1632: 1616: 1610: 1609: 1607: 1606: 1591: 1380: 1376: 1325:implementation. 1185: 1181: 1136: 1128: 1120: 1096: 1088: 1080: 1072: 1011: 1007: 1003: 738:Microsoft Office 625:OpenType support 544: 528: 413: 409: 405: 401: 397: 393: 376: 365: 361: 357: 353: 349: 345: 333: 326: 322: 314: 310: 306: 265: 235:Open Font Format 213:Open Font Format 135:PostScript fonts 111: 109: 104: 22: 18: 4994: 4993: 4989: 4988: 4987: 4985: 4984: 4983: 4944: 4943: 4942: 4937: 4919: 4903: 4835: 4795:writing systems 4794: 4788: 4742: 4682: 4626:Microtypography 4565: 4501: 4463: 4440: 4408: 4365:classifications 4364: 4353: 4302: 4256: 4222:Blackboard bold 4208: 4160: 4083: 4033: 4024:Recto and verso 3970: 3965: 3911:Microsoft Learn 3893: 3892: 3889: 3884: 3883: 3873: 3871: 3867: 3860: 3852: 3848: 3839: 3837: 3828: 3827: 3823: 3814: 3812: 3804: 3803: 3799: 3790: 3788: 3779: 3778: 3774: 3765: 3763: 3759:Microsoft Learn 3752: 3751: 3747: 3738: 3736: 3732:Microsoft Learn 3725: 3724: 3720: 3711: 3709: 3705:Microsoft Learn 3698: 3697: 3693: 3684: 3682: 3674: 3673: 3669: 3660: 3658: 3655:Microsoft Learn 3648: 3647: 3643: 3634: 3632: 3624: 3623: 3619: 3610: 3608: 3599: 3598: 3594: 3585: 3583: 3575: 3574: 3570: 3561: 3559: 3555:Microsoft Learn 3548: 3547: 3543: 3534: 3532: 3523: 3522: 3515: 3506: 3504: 3502:Pixelambacht.nl 3496:Roel Nieskens. 3494: 3487: 3478: 3476: 3466: 3462: 3453: 3451: 3438: 3437: 3426: 3417: 3415: 3406: 3405: 3401: 3392: 3390: 3381: 3380: 3376: 3367: 3365: 3358: 3354: 3353: 3349: 3340: 3338: 3333: 3332: 3328: 3319: 3317: 3308: 3307: 3303: 3294: 3292: 3287: 3286: 3282: 3273: 3271: 3258: 3257: 3253: 3244: 3242: 3235: 3229: 3225: 3216: 3214: 3207: 3203: 3202: 3198: 3189: 3187: 3178: 3177: 3173: 3164: 3162: 3154: 3153: 3149: 3140: 3138: 3137:. 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Knuth 467: 461: 459:Font Variations 424: 411: 407: 403: 399: 395: 391: 374: 363: 359: 355: 351: 347: 343: 331: 324: 320: 312: 308: 304: 272: 263: 255: 215: 191: 183:writing systems 159:. Derived from 112: 107: 105: 102: 100: 54: 53: 17: 12: 11: 5: 4992: 4982: 4981: 4976: 4971: 4966: 4961: 4956: 4939: 4938: 4936: 4935: 4924: 4921: 4920: 4918: 4917: 4911: 4909: 4905: 4904: 4902: 4901: 4896: 4891: 4886: 4881: 4876: 4871: 4866: 4865: 4864: 4859: 4854: 4843: 4841: 4837: 4836: 4834: 4833: 4832: 4831: 4829:National Fonts 4821: 4816: 4815: 4814: 4804: 4798: 4796: 4790: 4789: 4787: 4786: 4781: 4776: 4774:Web typography 4771: 4766: 4761: 4756: 4750: 4748: 4744: 4743: 4741: 4740: 4735: 4734: 4733: 4723: 4718: 4713: 4708: 4703: 4698: 4692: 4690: 4684: 4683: 4681: 4680: 4679: 4678: 4668: 4663: 4658: 4653: 4651:Reversing type 4648: 4643: 4638: 4633: 4628: 4623: 4618: 4613: 4608: 4603: 4598: 4597: 4596: 4591: 4581: 4575: 4573: 4567: 4566: 4564: 4563: 4558: 4553: 4548: 4547: 4546: 4536: 4531: 4526: 4520: 4518: 4507: 4506: 4503: 4502: 4500: 4499: 4498: 4497: 4492: 4487: 4477: 4471: 4469: 4465: 4464: 4462: 4461: 4456: 4450: 4448: 4442: 4441: 4439: 4438: 4429: 4424: 4418: 4416: 4410: 4409: 4407: 4406: 4401: 4400: 4399: 4394: 4389: 4378: 4376: 4367: 4359: 4358: 4355: 4354: 4352: 4351: 4346: 4341: 4336: 4331: 4326: 4321: 4316: 4310: 4308: 4304: 4303: 4301: 4300: 4295: 4290: 4285: 4280: 4278:Letter-spacing 4275: 4270: 4264: 4262: 4258: 4257: 4255: 4254: 4249: 4244: 4239: 4234: 4232:Color printing 4229: 4224: 4218: 4216: 4210: 4209: 4207: 4206: 4201: 4196: 4191: 4186: 4181: 4176: 4170: 4168: 4166:Capitalization 4162: 4161: 4159: 4158: 4153: 4148: 4143: 4138: 4133: 4128: 4123: 4118: 4113: 4108: 4102: 4100: 4091: 4085: 4084: 4082: 4081: 4080: 4079: 4069: 4064: 4059: 4054: 4049: 4043: 4041: 4035: 4034: 4032: 4031: 4026: 4021: 4016: 4011: 4006: 4004:Page numbering 4001: 3996: 3991: 3986: 3980: 3978: 3972: 3971: 3964: 3963: 3956: 3949: 3941: 3935: 3934: 3931:Wakamai Fondue 3928: 3923: 3915: 3914: 3913: 3888: 3887:External links 3885: 3882: 3881: 3846: 3821: 3797: 3772: 3745: 3718: 3691: 3667: 3641: 3617: 3592: 3568: 3541: 3513: 3485: 3460: 3424: 3399: 3374: 3347: 3326: 3301: 3280: 3251: 3223: 3196: 3171: 3147: 3125: 3100:Blogs.msdn.com 3086: 3062: 3037: 3012: 2994: 2969:Blogs.msdn.com 2955: 2930: 2903: 2878:Blogs.msdn.com 2864: 2837: 2812:Blogs.msdn.com 2798: 2772: 2743: 2716: 2690: 2670: 2658: 2638: 2617: 2607:. 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