List of typographic features

| Replaces the above-base part of a vowel sign. For Khmer and similar scripts.

| Positions a mark glyph above a base glyph.

| Ligates a consonant with an above-mark.

| Replaces halant+consonant combination with a subscript form.

| Positions a mark glyph below a base glyph

| Ligates a consonant with a below-mark.

| Replaces halant+consonant at the end of a consonant cluster with a glyph at the beginning. Khmer, Myanmar, Malayalam, Telugu

| Ligates consonant combinations.

| Ligates a final consonant+consonant.

| Replaces final halant+consonant with special form. Khmer and Gurmukhi, Malayalam

| Adjusts horizontal positioning between glyphs. (Always enabled, as opposed to 'kern'.)

| Hindi for unbreakable. Ligates consonant+halant+consonant, usually only for k-ss and j-ny combinations.

| Replaces a glyph for final consonant+halant.

| Replaces consonant+halant with a half form, indicating it is part of a conjunct.

| Replace consonant+nukta (dot mark) with single glyph.

| Replaces halant+ra with a rakar glyph, indicating it is part of a conjunct.

| Replaces initial ra+halant with a final reph mark, indicating part of a conjunct.

| Replaces consonant+rakar combinations with a vattu variant ligature.

| Ligates consonant+halant+consonant, indicates part of a conjunct.

| Khmer

| Replaces sinograms with their simplified versions, may be language dependent

| Replaces Chinese characters with their traditional versions

|Japanese alternates for proper names

| Typographic alternatives for some Japanese tetragrams

| JIS C 6226-1978 alternates for Japanese tetragrams, not accessible per Unicode

|JIS X 0208-1983 alternates for Japanese tetragrams, not accessible per Unicode

| JIS X 0208-1990 alternates for Japanese tetragrams, not accessible per Unicode

| Transliterates Chinese-style characters with Korean Hangul

| Initial group of consonants for a synthesized Korean Hangul tetragram

| Final group of consonants for a synthesized Korean Hangul tetragram

| Medial group of vowels for a synthesized Korean Hangul tetragram

| Replaces proportionally spaced character with full-width versions (esp. for Latin letters within Chinese)

| Replaces uniformly-spaced characters with half-width version

| Re-positions full-width glyphs on half-width spaces

| Replaces uniformly-spaced character with a version of 1/3 width (punctuation, etc.)

| Replaces uniformly-spaced glyphs with quarter-width ones (punctuation etc.)

| Replaces uniformly-spaced glyphs with proportional ones

| Re-positions otherwise monospace characters according to glyph width

| Kana for use alongside alphabets, without grid typography

| Ruby characters, small print

| Alternate forms for horizontal kana text, e.g. ー for chōonpu instead of ｜, cf. vkna

| Alternate Japanese kana forms for vertical text, e.g. ｜ for chōonpu instead of ー, cf. hkna

| Positions punctuation marks vertically and horizontally

| Precise positioning of a letter's connection to an adjacent one

| User selectable wider and narrower alternates, used especially for justifying

| Used in Windows 95 for positioning of Arabic marks

|Contextual alternates required for correct text display which differs from the default join for other letters, required especially important by Arabic

| Ligatures required for correct text display (any script, but in cursive)

| Substitutes a special form of a letter occurring outside a word (required by Arabic and Syriac)

| Substitutes a special form of a letter occurring at the beginning of a word (required by Arabic and Syriac)

| Substitutes a special form of letters between other letters in words (required by Arabic and Syriac)

| Syriac

| Substitutes a special form of a letter at end of words (required by Arabic and Syriac)

| Syriac

| Syriac

| Replaces final glyph on the line with an alternate

| Substitutes a special form of a stretchy glyph onto one or more letters (required by Syriac)

| Replaces lower-case letters with small caps versions

| Substitutes capital letters with small caps

| Replaces lower-case letters with their petite caps analogs

| Replaces capital letters with petite caps

| Replaces lowercase and uppercase letters with a set of single case glyphs

| Adjusts spacing between letters in all-capitals text

| Replace characters, especially punctuation, with forms better suited for all-capital text, cf. titl

| Replaces letter with corresponding italic glyph

| Replaces characters with ordinal forms for use after numbers

| Positions shorter characters to be centered vertically with full-height characters

| Positions characters to be centered vertically with half-height characters

| Re-positions glyphs vertically to be centered on proportional full-height characters

| A subset of vrt2: prefer the latter feature

| Replaces characters with forms suitable for vertical writing, possibly by rotating 90°

| Replaces characters with forms suitable for vertical writing, possibly by shifting or shape

| Fine vertical positioning of characters based on shape

| Replaces characters with forms befitting left-to-right presentation (except mirrored forms)

| Replaces characters with possibly mirrored forms befitting left-to-right presentation

| Replaces characters with forms befitting right-to-left presentation (except mirrored forms)

| Replaces characters with possibly mirrored forms befitting right-to-left presentation

| Replaces numerals with glyphs meant to fit better in all-capitals text, often also tnum

| Replaces numerals with cased old-style numerals, often also pnum

| Replaces numerals with glyphs of proportional width, often also onum

| Replaces numerals with glyphs of uniform width, often also lnum

| Converts figures separated by slash with diagonal fraction

| Converts figures separated by slash with alternative stacked fraction form

| Converts to appropriate fraction denominator form, invoked by frac

| Converts to appropriate fraction numerator form, invoked by frac

| as in "H₂O", "SO_x" or "YC_bC_r" (but using the same font weight and predefined position in contrast these plain HTML subs and sups)

| Replaces 0 figure with slashed 0

| Replaces Greek characters with special forms for use in mathematics

| Special feature: used to present user with choice all alternate forms of the character

| Either replaces character with or displays multiple swashed versions

| Converts letter to a swashed version based on characters around the letter

| Applies a second substitution feature based on a match of a character pattern within a context of surrounding patterns

| Obsolete forms of characters to be applied at the user's discretion, cf. hlig

| Replaces character with the preferred form based on script language

| Replaces character with random forms (meant to simulate handwriting)

| Provides user access to circled digits, inverse letters etc.

| Multiple variants of a single character, which may not apply to many other characters, see references for voluminous documentation

| Either replaces with, or displays list of, stylistic alternatives for a character

| Replaces character with one from a font-specific set of stylistic alternatives

| Replaces character with subscript version, cf. numr

| Replaces character with superscript version, cf. dnom

| Replaces characters with forms suited for large type, as in titles

| Special variants of a single character, which need apply to specific font variation, required by variable fonts

| Applies a second ligature feature based on a match of a character pattern within a context of surrounding patterns

| Ligatures to be applied at the user's discretion

| Obsolete ligatures to be applied at the user's discretion

| Replaces (by default) sequence of characters with a single ligature glyph

| Either calls a ligature replacement on a sequence of characters or replaces a character with a sequence of glyphs. Provides logic that can for example effectively alter the order of input characters.

| Fine horizontal positioning of one glyph to the next, based on the shapes of the glyphs

| Fine positioning of a mark glyph to a base character

| Fine positioning of a mark glyph to another mark character

| Re-positions glyphs at beginning and end of line, for precise justification of text.

| Re-positions glyphs at end of line. Called by opbd.

| Re-positions glyphs at beginning of line. Called by opbd.

| Decorative alternates for the bullet character •