Often reserved for Bold-Italic or a distinct stylistic variant.
So, why use numbers? The answer is scale and efficiency. Older font formats were designed for alphabets like English, which have a few dozen characters. But what about languages like Chinese, Japanese, or Korean (CJK), which have thousands of distinct characters? A font using names for each character would be massive and slow. CID-keyed fonts were Adobe's brilliant solution, created to handle these massive character sets with grace and speed. They are the backbone of professional CJK typography.
Commercial printing presses require high-fidelity fonts and often flag CID fonts as errors because they can restrict last-minute text edits. cid font f1 f2 f3 f4 better
Tools like Adobe's Font Development Kit for OpenType (AFDKO) provide the ability to convert CID source files into professional OpenType fonts, allowing for the creation of complex, multi-language typefaces. A CID-keyed font can also use multiple Font Dictionaries (FDs), each containing its own set of instructions (like "subroutines" or small macros) for different subsets of glyphs, making the font incredibly powerful and flexible.
Choose for long-term archiving, which strictly requires full font embedding. Often reserved for Bold-Italic or a distinct stylistic
This means that a document displaying CIDFont+F1 and CIDFont+F2 in one context might map to completely different fonts in another document. You cannot assume that a document with CIDFont+F1 contains Arial Bold unless you can verify the original font mapping.
The term stands for Character Identifier . In professional digital typesetting, a CID-keyed font organizes complex characters (such as those in Chinese, Japanese, Korean, or vast European glyph sets) by index numbers rather than individual character names. Older font formats were designed for alphabets like
If a workflow uses standard F1 (Helvetica) or F2 (Times) without CID technology, the following limitations arise:
If you are dealing with a document where the F1 or F2 text is broken, use these steps to generate a better, fully compatible version: Method 1: Print to PDF (Refrying)