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Format

Adobe Flash

Summary

Name
Adobe Flash
Version
11
Identifiers
  • MIME: application/x-shockwave-flash
  • PUID: fmt/757
Description
The Adobe Flash format, SWF, previously known as Shockwave Flash or Macromedia Shockwave Flash, and alternatively known as the Small Web Format, is a file format primarily designed for creating interactive multimedia applications. The format iterates rapidly, often in line with new releases of Adobe Flash or Adobe Air. Prior to version 6 all SWF files were uncompressed, however version 6 introduced the option of using zlib compression. Version 13 introduced the option of using LZMA compression.
File extensions
swf
Source
Digital Preservation Department / The National Archives
Developed by
Adobe Systems Incorporated
Supported by
Adobe Systems Incorporated

Relationships

Is previous version of

Internal signatures

SWF 11

Note
Header (FWS then version number) and end tag (..)

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
4657530B
Endianness
None
Min Frag Length
Absolute from EOF
Offset
0
Max offset
0
Byte Sequence
0000
Endianness
None

SWF 11 - zlib compressed

Note
Header (CWS then version number)

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
4357530B
Endianness
None

Changelog

  • Updated in V84

    Release date
    21 January 2016

    Adobe Flash 11: Added missing signature for zlib compressed version.

  • Added in V83

    Release date
    17 December 2015

    Adobe Flash 11: Signature developed through PRONOM Research.

    Adobe Flash 11: Full entry added.