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https://issues.apache.org/jira/browse/TIKA-3827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17575184#comment-17575184
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Tim Allison edited comment on TIKA-3827 at 8/4/22 10:06 AM:
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Ah, ok, thank you. Good to have confirmation from a Windows application. I
don't know if this is a feature of how RTF embeds bitmaps (without headers) or
if the file is corrupted. If you open the file in a hex editor, you can see
the bytes are extracted properly and that the files do not start with "BM" (see
eg: https://gist.github.com/leommoore/f9e57ba2aa4bf197ebc5). This is the
reason that Tika's mime detection on the bytes of these images is failing.
There's no header.
was (Author: talli...@mitre.org):
Right. That's my point above. I don't know if this is a feature of how RTF
embeds bitmaps (without headers) or if the file is corrupted. If you open the
file in a hex editor, you can see the bytes are extracted properly and that the
files do not start with "BM" (see eg:
https://gist.github.com/leommoore/f9e57ba2aa4bf197ebc5). This is the reason
that Tika's mime detection on the bytes of these images is failing. There's no
header.
> Word Document extracted mpga file extension instead of bitmap
> --------------------------------------------------------------
>
> Key: TIKA-3827
> URL: https://issues.apache.org/jira/browse/TIKA-3827
> Project: Tika
> Issue Type: Bug
> Components: parser
> Reporter: Tika User
> Priority: Major
> Attachments: Screenshot from 2022-08-04 06-05-09.png, example.DOC,
> file_1.bmp, file_2.bmp, image-2022-08-04-10-52-44-800.png,
> image-2022-08-04-10-53-48-894.png
>
>
> When tried to parser the .doc document it is extracted two mpga files which
> can't be open to play. We are suspecting they should be bitmap image files.
> The Tika version we are using is 2.4.1.
> [^example.DOC]
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