Does PostScript support unicode for CJK fonts?
PostScript does not specifically support Unicode. It includes general support (from level 2) for multi-byte (2, 3 or 4 byte) fonts. Unicode is just a special case of multi-byte encoding. There is no Unicode font as such, but you can use multi-byte CID fonts that provide support for ranges of Unicode. There are no freely redistributable Unicode CMaps. They can be derived from MS Windows code pages and corresponding Adobe CMaps. Developers often look for a “simple” way to just include Unicode strings with no checking for ranges, language etc. but this is a pipe dream. Some PostScript engines also provide support for TrueType fonts that have no CID-mapping internally. In that case, no CID map is needed for these fonts, but only a read filter for decoding a Unicode-encoded stream for the string storing the byte sequences ; several decoding filters are possible, including those supporting UTF-8 and UTF-16, because the PostScript’s “read” operator just expects the filter to return any conven
PostScript does not specifically support Unicode. It includes general support (from level 2) for multi-byte (2, 3 or 4 byte) fonts. Unicode is just a special case of muiti-byte encoding. There is no Unicode font as such, but you can use multi-byte CID fonts that provide support for ranges of Unicode. There’s no freely redistribitable Unicode CMap’s. They can be derived from MS Windows code pages and corresponding Adobe CMap’s:.
