Structured Fax File

File Format
Name	Structured Fax File
Ontology	Electronic File Formats Graphics Fax formats Structured Fax File
Extension(s)	.sff

Structured Fax File format (SFF) is a bi-level raster image format used by ISDN devices that support CAPI (Common ISDN Application Programming Interface). An SFF file contains one or more images in CCITT Group 3 format.

Identification

SFF files begin with a signature: The ASCII string "Sfff".

Specifications

• Structured Fax File Format Description

Software

• SFF Tools
• XnView
• IrfanView (with SFF PlugIn)

Sample files

• testfax.sff

Links

• Wikipedia article