Convert CID to CFF

The CID (Character Identifier) file extension, developed by Adobe, is used for CID-keyed fonts, which are composite (multibyte) Type 1 fonts designed to support large character sets, particularly for East Asian languages like Chinese, Japanese, and Korean. These fonts address glyphs by number rather than name, allowing for efficient handling of extensive character sets. Introduced to meet the demands of the Far East markets, CID fonts facilitate high-quality digital typesetting and printing by leveraging the PostScript language.

CFF, or Compact Font Format, is a file extension used in computer technology for efficient storage of font data. CFF was developed as part of Adobe's PostScript technology to streamline font file sizes while maintaining high-quality vector graphics. Its primary use is in embedded systems, print, and digital media, providing a compact and versatile format for typefaces. The history of CFF dates back to the early 1990s when it was introduced to address the need for more efficient font management in professional publishing and graphic design environments.