Smart font optional features for Graphite and OpenType fonts
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This table displays the supported features in OpenType and Graphite fonts |
LibreOffice supports optional font features for the smart font technologies SIL Graphite and OpenType. In LibreOffice, users can access the optional font features by setting extended font names in the fonts dialog. You need to enter IDs from below table after the font name. A user interface for setting the features is implemented in version 6.2 (tdf#58941).
Examples
For example for the font "Linux Libertine G":
Linux Libertine G:smcp=1(small caps)
or a combination of features:
Linux Libertine G:pnum=1&onum=1(proportional old style numbers)
Please note that most fonts only support a subset of following optional features!
Limitations
Limitations of the current support is that there is no support for optional OpenType features in the OOXML export. Also, the ODF 1.2 standard does not yet provide OpenType optional features support. This feature is scheduled for the standard revision ODF 1.3.
On Graphite fonts
For Graphite fonts, please see following HowTo for the font features of Linux Libertine G and Linux Biolinum G and SIL Graphite fonts.
Smart fonts bundled with LibreOffice
On Linux, MS Windows and Apple macOS, a large number of smart fonts are installed by the operating system or other applications. Additionally, each LibreOffice installation bundles following smart fonts:
Please cross-check whether following fonts lists are correct!!
- Linux Biolinum G
- Linux Libertine Display G
- Linux Libertine G
- Noto Sans
- Noto Serif
- Source Code Pro
- Source Sans Pro
- Source Serif Pro
Following bundled fonts do not support optional smart font features: Caladea, Carlito, DejaVu Sans, DejaVu Sans Condensed, DejaVu Sans Mono, DejaVu Serif, DejaVu Serif Condensed, Gentium Basic, Gentium Book Basic, Liberation Mono, Liberation Sans, Liberation Sans Narrow, Liberation Serif, Noto font family other than Noto Sans and Noto Serif.
List of optional smart font features and their ID
Note: All Graphite font feature IDs are font specific, depending on which font you are used.
| ID | Description | Further information and examples |
|---|---|---|
| aalt | Access all alternates | |
| abvf | Above-base forms | |
| abvm | Above-base mark positioning | |
| abvs | Above-base substitutions | |
| afrc | Alternative fractions | |
| akhn | Akhands | |
| algn | Right-aligned numbers or footnote numbering signs | only available in Graphite |
| arti | Definitive article | only available in Graphite |
| blwf | Below-base forms | |
| blwm | Below-base mark positioning | |
| blws | Below-base substitutions | |
| c2pc | Capitals to petite capitals | |
| c2sc | Capitals to small capitals | |
| calt | Contextual alternates | |
| caps | Capitalized forms | only available in Graphite |
| case | Case-sensitive forms | |
| ccmp | Glyph composition/decomposition | |
| cfar | Conjunct form after Ro | |
| circ | Enclosed alphanumerics | only available in Graphite |
| cjct | Conjunct forms | |
| clig | Contextual ligatures | |
| cpct | Centered CJK punctuation | |
| cpsp | Capital spacing | |
| cswh | Contextual swash | |
| curs | Cursive positioning | |
| cv01-cv99 | Character variants | |
| dash | N-dash correction | only available in Graphite |
| dbls | Double-stroke letters | only available in Graphite |
| dist | Distances | |
| dlig | Discretionary ligatures | |
| dnom | Denominators | |
| dtls | Dotless forms | |
| expt | Expert forms | |
| falt | Final glyph on line alternates | |
| fin2 | Terminal forms #2 | |
| fin3 | Terminal forms #3 | |
| fina | Terminal forms | |
| flac | Flattened accent forms | |
| foot | Footnote numbering signs | only available in Graphite |
| frac | Fractions (diagonal fractions) | |
| frsp | French spacing | only available in Graphite |
| fwid | Full widths | |
| grkn | Numbers to Greek small letters | only available in Graphite |
| hang | Hanging punctuation | only available in Graphite |
| half | Half forms | |
| haln | Halant forms | |
| halt | Alternate half widths | |
| hist | Historical forms | |
| hkna | Horizontal Kana alternates | |
| hlig | Historical ligatures | |
| hngl | Hangul | |
| hojo | Hojo Kanji forms (JIS X 0212-1990 Kanji Forms) | |
| hwid | Half widths | |
| init | Initial forms | |
| ingl | Single substitution | only available in Graphite |
| isol | Isolated forms | |
| ital | Italics | |
| itlc | Italic correction | only available in Graphite |
| jalt | Justification alternates | |
| jp04 | JIS2004 forms | |
| jp78 | JIS78 forms | |
| jp83 | JIS83 forms | |
| jp90 | JIS90 forms | |
| kern | Kerning | |
| lfbd | Left bounds | |
| liga | Standard ligatures | |
| ligc | Ligature correction at hyphenation | only available in Graphite |
| lith | Extra switch for “Th” ligature | only available in Graphite |
| litt | Extra switch for “tt” ligature | only available in Graphite |
| ljmo | Leading Jamo forms | |
| lnum | Lining Figures | |
| locl | Localized forms in Latin | |
| ltra | Left-to-right alternates | |
| ltrm | Left-to-right mirrored forms | |
| mark | Mark positioning | |
| med2 | Medial forms #2 | |
| medi | Medial forms | |
| mgrk | Mathematical Greek | |
| minu | True minus sign | only available in Graphite |
| mkmk | Mark to mark positioning | |
| mset | Mark positioning via substitution | |
| name | Number to number names | only available in Graphite |
| nalt | Alternate annotation forms | |
| nfsp | Non French spacing: greater spaces between sentences | only available in Graphite |
| nlck | NLC Kanji forms | |
| nukt | Nukta forms | |
| numr | Numerators | |
| onum | Oldstyle numbers / Text figures / Non-lining figures | Text figures |
| opbd | Optical bounds | |
| ordn | Ordinals | |
| ornm | Ornaments | |
| palt | Proportional alternate widths | |
| para | Regular parenthesis in Italic | only available in Graphite |
| pcap | Petite capitals | |
| pkna | Proportional Kana | |
| pnum | Proportional numbers | |
| pref | Pre-base forms | |
| pres | Pre-base substitutions | |
| pstf | Post-base forms | |
| psts | Post-base substitutions | |
| pwid | Proportional widths | |
| quot | Quotation mark correction | only available in Graphite |
| qwid | Quarter widths | |
| rand | Randomize | |
| rand | Required contextual alternates | |
| rkrf | Rakar forms | |
| rlig | Required ligatures | |
| rphf | Reph forms | |
| rtbd | Right bounds | |
| rtla | Right-to-left alternates | |
| rtlm | Right-to-left mirrored forms | |
| ruby | Ruby notation forms | |
| rvrn | Required variation alternates | |
| sa01-99 | for single salt items | only available in Graphite |
| salt | Stylistic alternatives | |
| sinf | Scientific inferiors | |
| size | Optical size | |
| smcp | Small capitals | |
| smpl | Simplified forms | |
| ss01-20 | Stylistic set 1 to 20 | |
| ssty | Math script style alternates | |
| stch | Stretching glyph decomposition | |
| subs | Subscript | |
| sups | Superscript | |
| swsh | Swash | |
| texm | TeX-mode | only available in Graphite |
| thou | Thousand separation | only available in Graphite |
| titl | Titling | |
| tjmo | Trailing Jamo forms | |
| tnam | Traditional name forms | |
| tnum | Tabular figures | |
| trad | Traditional forms | |
| twid | Third widths | |
| unic | Unicase | |
| valt | Alternate vertical metrics | |
| vari | Variant | only available in Graphite |
| vatu | Vattu variants | |
| vert | Vertical writing | |
| vhal | Alternate vertical half metrics | |
| vjmo | Vowel Jamo forms | |
| vkna | Vertical Kana alternates | |
| vkrn | Vertical kerning | |
| vpal | Proportional alternate vertical metrics | |
| vrt2 | Vertical alternates and rotation | |
| vrtr | Vertical alternates for rotation | |
| zero | Slashed zero |