This is a format for compact font storage in the OpenType system, allowing for the rasterization of text information. It differs from TrueType in its abilities to describe font symbols and with its font structure variation algorithm, depending on the change in size. CFF allows for increased screen clarity with high resolution, but this is not due to the font, but its rasterization.
This is a 7-bit font format used for directly downloading to a PostScript printer. It has two character encoding in hexadecimal. It has good compatibility with multiple font formats. PFA contains an outline for font symbols and is formatted in ASCII text data.