This is a format for presenting fonts in PDF files that was initially conceived to store symbols in the Japanese and Chinese languages because it had a 16-bit structure and allowed for more precise adjustment. CID expands the the potential for PostScript by supporting languages that do not have a left-to-right orientation, and by supporting even a vertical mode of orientation.
This is a format for storing raster images, developed by the Ulead Company. It can include several edible layers, like in a Photoshop document. The image raster format was transferred to the TrueType font system and allows for the presentation of graphical information in a text format.