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Format

Adobe Flash

Summary

Name
Adobe Flash
Version
29
Identifiers
  • MIME: application/x-shockwave-flash
  • PUID: fmt/775
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
Is subsequent version of

Internal signatures

SWF 29 - LZMA compressed

Note
Header (ZWS then version number)

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
5A57531D
Endianness
None

SWF 29 - zlib compressed

Note
Header (CWS then version number)

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
4357531D
Endianness
None

SWF 29

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

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
4657531D
Endianness
None
Min Frag Length
Absolute from EOF
Offset
0
Max offset
0
Byte Sequence
0000
Endianness
None

Changelog

  • Added in V83

    Release date
    17 December 2015

    Adobe Flash 29: Signature developed through PRONOM Research.

    Adobe Flash 29: Full entry added.