MAG (GIF archiver)

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(Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|mag}}, {{ext|gif}} |released=1996 }} '''MAG''' (Mark Archiver for GIF) is a compression/archiving utilit...")
 
 
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== Software ==
 
== Software ==
 
* {{CdTextfiles|nightowl/nopv20/029A/MAG02.ZIP|MAG v0.1}} (DOS software)
 
* {{CdTextfiles|nightowl/nopv20/029A/MAG02.ZIP|MAG v0.1}} (DOS software)
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[[Category:Archiving]]
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[[Category:Recompression]]
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[[Category:ZIP based file formats]]

Latest revision as of 15:33, 26 May 2021

File Format
Name MAG (GIF archiver)
Ontology
Extension(s) .mag, .gif
Released 1996

MAG (Mark Archiver for GIF) is a compression/archiving utility, featuring a special way to compress GIF image files that usually improves the compression ratio. It was developed by Mark Gauthier, and distributed as shareware.

[edit] Discussion

A .MAG archive uses standard ZIP format, except that any GIF files contained in it require special processing to decompress. After decompression, a GIF file will be functionally equivalent to the original, but not necessarily byte-for-byte identical.

If a GIF file is extracted from a .MAG archive by a standard unzip utility, the result will be a ".GIF" file that's not in GIF format. Instead, it will be in a non-compressed image format we might call "MAG intermediate format".

[edit] Identification

There's probably no simple way to distinguish a .MAG file from a standard ZIP file, just by its contents.

The intermediate files made by MAG v0.1 are observed to start with ASCII "MAG000".

[edit] Software

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