PDFlib 8 Windows COM/.NET Tutorial

The vert feature (vertical writing) will be automatically enabled for fonts with vertical
writing mode (i.e. the vertical option has been supplied to load_font( )), and disabled
for fonts with horizontal writing mode.
Table 6.7 Supported OpenType layout features for Chinese, Japanese, and Korean text (Table 6.1 lists additional
supported OpenType layout features for general use)
keyword
name description
expt expert forms Like the JIS78 forms this feature replaces standard Japanese forms with corresponding
forms preferred by typographers.
fwid full widths Replace glyphs set on other widths with glyphs set on full (usually em) widths.This may
include Latin characters and various symbols.
hkna
horizontal Kana alternates
Replace standard Kana with forms that have been specially designed for only horizontal
writing.
hngl Hangul Replace hanja (Chinese-style) Korean characters with the corresponding Hangul (syllabic)
characters.
hojo
Hojo Kanji forms (JIS
X 0212-1990)
Access the JIS X 0212-1990 glyphs (also called »Hojo Kanji«) if the JIS X 0213:2004 form is
encoded as default.
hwid half widths Replace glyphs on proportional widths, or fixed widths other than half an em, with
glyphs on half-em (en) widths.
ital italics Replace the Roman glyphs with the corresponding Italic glyphs.
jp04 JIS2004 forms (Subset of the nlck feature) Access the JIS X 0213:2004 glyphs.
jp78 JIS78 forms Replace default (JIS90) Japanese glyphs with the corresponding forms from JIS C 6226-
1978 (JIS78).
jp83 JIS83 forms Replace default (JIS90) Japanese glyphs with the corresponding forms from JIS X 0208-
1983 (JIS83).
jp90 JIS90 forms Replace Japanese glyphs from JIS78 or JIS83 with the corresponding forms from JIS X
0208-1990 (JIS90).
locl localized forms Enable localized forms of glyphs to be substituted for default forms. This feature requires
the script and language options.
nalt
alternate annotation
forms
Replace default glyphs with various notational forms (e.g. glyphs placed in open or solid
circles, squares, parentheses, diamonds or rounded boxes).
nlck NLC Kanji forms Access the new glyph shapes defined in 2000 by the National Language Council (NLC) of
Japan for a number of JIS characters.
pkna proportional Kana Replace glyphs, Kana and Kana-related, set on uniform widths (half or full-width) with
proportional glyphs.
pwid proportional widths Replace glyphs set on uniform widths (typically full or half-em) with proportionally
spaced glyphs.
qwid quarter widths Replace glyphs on other widths with glyphs set on widths of one quarter of an em (half
an en).
ruby Ruby notation forms Replace default Kana glyphs with smaller glyphs designed for use as (usually superscripted)
Ruby.
smpl simplified forms Replace traditional Chinese or Japanese forms with the corresponding simplified forms.
6.5 Chinese, Japanese, and Korean Text Output 175