Format
Adobe Flash
Summary
- Name
- Adobe Flash
- Version
- 25
- Identifiers
-
- MIME: application/x-shockwave-flash
- PUID: fmt/771
- 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 25
- Note
- Header (FWS then version number) and end tag (..)
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
46575319- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
0000- Endianness
- None
SWF 25 - zlib compressed
- Note
- Header (CWS then version number)
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
43575319- Endianness
- None
SWF 25 - LZMA compressed
- Note
- Header (ZWS then version number)
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
5A575319- Endianness
- None
Changelog
-
Added in V83
- Release date
- 17 December 2015
Adobe Flash 25: Signature developed through PRONOM Research.
Adobe Flash 25: Full entry added.