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JHOVE misses invalid GIF that cannot be opened and can be detected by other tools #296

YvonneTunnat opened this Issue Nov 24, 2017 · 0 comments


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YvonneTunnat commented Nov 24, 2017


Hi folks,

as some of you might know, I am currently testing the JHOVE GIF module, for now running it against a test corupus of 48,000 files and also running the same test suite against ImageMagick, Metadata Extractor and Bad Peggy.

There is this one file, that JHOVE misses, although it:

  • cannot be rendered by the IE
  • is flagged as invalid by ImageMagick, the Metadata Extractor and Bad Peggy

As it has a valid header and a valid trailer, maybe there is something that JHOVE does not check yet.
I myself will further investigate, too, but just in case someone is working at the GIF module currently, this file might help.

Best, Yvonne

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