IFF (Amiga Interchange) is a general-purpose data storage format (raster), developed by Electronic Arts, Inc. and Commodore-Amiga, Inc., that can associate and store multiple types of data. It is used by ACD FotoCanvas Lite 2.0 and XnView applications.
IFF reads and writes RLE, and non-compressed images.
For IFF files, you can read and write IFF ILBM and IFF CAT for the following bits per pixel: 1 - 8, 24. (IFF ILBM and IFF CAT can be RLE compressed or uncompressed. IFF CAT also supports multi-page files.)