TIFF-FX

File Format
Name	TIFF-FX
Ontology	Electronic File Formats Graphics TIFF-FX
Extension(s)	.tif, .tiff
MIME Type(s)	image/tiff-fx
PRONOM	fmt/156
Released	≤1998

The TIFF-FX (TIFF for Fax eXtended) specification defines a family of TIFF profiles (subformats) intended for use with internet fax systems. Notably, it defines TIFF compression types 9 (T.85 JBIG) and 10 (T.43 JBIG), and photometric interpretation type 10 (T.42 ITU L*a*b*). An "extensions" document defines compression type 34715 (JBIG2).

Profiles

• Profile S: Minimal Black-and-White Fax Profile
• Profile F: Extended Black-and-White Fax Profile. Also known as "TIFF-F" or "TIFF Class F".
• Profile J: Lossless JBIG Black-and-White Fax Profile. Based on JBIG and T.85.
• Profile C: Base Color Fax Profile. Based on JPEG and T.42.
• Profile L: Lossless Color Profile. Based on JBIG and T.43.
• Profile M: Mixed Raster Content Profile. Based on T.44.
• Profile T: Lossy and Lossless JBIG2 (abandoned?)

Specifications

• RFC 3949: TIFF-FX (2005)
• RFC 2301: TIFF-FX (1998, obsolete)
• TIFF-FX Extension Set 1 (2001, draft)
• TIFF-FX Extensions 1 (2000, draft)
• RFC 3950: image/tiff-fx MIME Sub-type Registration
• ITU-T Rec. T.42: ITU L*a*b*
• ITU-T Rec. T.43: Colour and gray-scale FAX coding scheme
• ITU-T Rec. T.44: Mixed Raster Content
• ITU-T Rec. T.85: JBIG FAX application profile