Image Exchange Format

Image Exchange Format is a obsolete subformat of TIFF, intended to be used for the transmission of bi-level images, especially fax images, over the (early) internet.

It is defined in RFC 1314 as a subformat of TIFF Class B (which it calls TIFF-B). TIFF Class B is the bi-level TIFF subformat defined in the TIFF 5.0 specification.

It is not to be confused with Exchangeable image file format (Exif).

Specifications

 * RFC 1314: A File Format for the Exchange of Images in the Internet
 * For the TIFF 5.0 specification, refer to TIFF.