The National Archives
Search our website
  • Search our website
  • Search our records
Image of software box and CD PRONOM
Welcome (PRONOM  home page) About PRONOM Add an entry
Search Help - opens in a new window Information resources - opens in a new window

*Details: File format summary



Search by keyword Search by file format Search by PUID Search by software Search by vendor Search by lifecycles Search by Migration Pathway

Details for:

Save as... XML | CSV Printer friendly version


Name Seattle FilmWorks SFW Image Format
Other names  
Identifiers PUID:  fmt/1104
Classification Image (Raster)
Description Seattle FilmWorks was a mail order film processing company. Digitised photographs made by the company used a family of proprietary raster image formats known as SFW and PWP (PhotoWorks PhotoMail). The SFW format has a compressed version based on JPEG, and an uncompressed version based on BMP.
Byte order  
Related file formats None.
Technical Environment  
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source The Church of Jesus Christ of Latter-Day Saints / The Church of Jesus Christ of Latter-Day Saints
Source date 28 Sep 2017
Source description  
Last updated 20 Jan 2020
Top of page Top of page
The National Archives Newsletter Icon

Send me The National Archives’ newsletter

A monthly round-up of news, blogs, offers and events.