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.
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Convert to CID
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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.
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Convert By CMap
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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.
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Flatten
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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.
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Flatten By CMap
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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.
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Insert Font
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Will allow you to browse for a normal font which will be added as another
sub font to the current CID font.
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Insert Blank
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Inserts a blank sub-font into the current CID font.
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Remove Font
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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).
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Change Supplement...
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Displays the Registry/Ordering information of the font and allows you to
change the Supplement level.
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CID Font Info
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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.
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<sub font name>
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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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