Dominik Schmidt created TIKA-5032:
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Summary: 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: parser, mime
Reporter: Dominik Schmidt
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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