The CID Menu
The CID Menu provides a few commands for manipulating CID
keyed fonts. If the current font is a CID keyed font the menu
also includes a list of all subfonts that make up this one.
This menu is only available in the font view.
Er... What is a CID keyed
Font?
A CID keyed font is a postscript (or opentype) font designed
to hold Chinese, Japanese and Korean characters efficiently.
More accurately a CID font is a collection of several sub-fonts
each with certain common features (one might hold all the latin
letters, another all the kana, a third all the kanji). This
allows font-wide hinting to be crafted for subsets of glyphs to
which have something in common.
CID keyed fonts do not have an encoding built into the font,
and the glyphs do not have names. Instead the font is
associated with a glyph set and on each glyph set there are
several character mappings defined. These mappings are similar
to encodings but allow for a wider range of behaviors.
A CID is a glyph index and is used to look up glyph
descriptions instead of glyph names in other types of fonts.
Using a glyph set FontForge will often be able to map a CID to
a unicode character name (but not always), so FontForge will
give glyphs names when it can.
For more information see the section on CID keyed fonts on the font view
page.
- Convert to CID
- If the current font is not a CID font then this command
will convert it into one containing one subfont (with the
glyphs in this font). You will be prompted for a glyph
set.
- Convert By
CMap
- If the current font is not a CID font then this command
will convert it into one containing a single subfont. You
will be prompted for an Adobe CMap file.
- Flatten
- If the current font is a CID font then this command will
convert it into a normal (flat) font by taking all the glyphs
from all the sub-fonts and merging them into one normal font.
The new font should be in the same order as the CID font (ie.
ordered by CID). After this operation you may re-encode it
into whatever encoding is appropriate.
- Flatten By
CMap
- If the current font is a CID font then this command will
convert it into a normal font. It prompts you for an Adobe
CMap file and uses that to define an encoding for the
resultant font.
- Insert Font
- Will allow you to browse for a normal font which will be
added as another sub font to the current CID font.
- Insert Blank
- Inserts a blank sub-font into the current CID font.
- Remove Font
- Removes the current font from the CID font. Anything in
it will be lost. (If you want to save it first then use
Generate Font and save it as a pfb file (or any other simple
format).
- Change
Supplement...
- Displays the Registry/Ordering information of the font
and allows you to change the Supplement level.
- CID Font Info
-
This allows you to provide information on the entire
collection of subfonts rather than just the current
subfont. It provides access to the standard font info dialog.
- <sub font name>
- Clicking on a different sub font name in the menu will
cause that sub-font to be displayed instead of the current
one.
Other menus
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