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https://issues.apache.org/jira/browse/TIKA-5032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18139734#comment-18139734
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ASF GitHub Bot commented on TIKA-5032:
--------------------------------------

tballison merged PR #3545:
URL: https://github.com/apache/tika/pull/3545




> Extract the preview image of zip-based formats (comics, Krita, OpenRaster, 
> Procreate, Sketch, FreeCAD, 3MF)
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: TIKA-5032
>                 URL: https://issues.apache.org/jira/browse/TIKA-5032
>             Project: Tika
>          Issue Type: Improvement
>          Components: mime, parser
>            Reporter: Dominik Schmidt
>            Priority: Major
>
> These formats are zip containers that carry a ready-made preview at a fixed 
> path:
> * {{.cbz}}: first image in name order
> * {{.kra}}: {{preview.png}}
> * {{.ora}}: {{Thumbnails/thumbnail.png}}
> * {{.procreate}}: {{QuickLook/Thumbnail.png}}
> * {{.sketch}}: {{previews/preview.png}}
> * {{.FCStd}}: {{thumbnails/Thumbnail.png}}
> * {{.3mf}}: {{Metadata/thumbnail.png}}
> Detect them and emit that image as the THUMBNAIL embedded resource, so 
> {{/unpack/preset/thumbnail}} serves it. Several have no media type in 
> tika-mimetypes.xml yet (shared-mime-info has 
> {{application/vnd.comicbook+zip}}, {{application/x-krita}}, 
> {{image/openraster}}). For 3MF see TIKA-5031.



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