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https://issues.apache.org/jira/browse/PDFBOX-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15815541#comment-15815541
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Tilman Hausherr commented on PDFBOX-3647:
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The bbox is rotated. Our shading implementation doesn't support a rotated BBox.
I'll deactivate (and later remove) the BBox handling from the shading classes,
it can be done by java itself, by intersecting with the painting area.
I won't fix this in 1.8, PageDrawer is different there, and nobody who cares
about rendering would want to use 1.8.
> Shading cut off
> ---------------
>
> Key: PDFBOX-3647
> URL: https://issues.apache.org/jira/browse/PDFBOX-3647
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 1.8.13, 2.0.4
> Reporter: Tilman Hausherr
> Labels: shading
> Attachments: PDFBOX-3647.pdf
>
>
> The attached file is reduced from file "***417" that I mentioned in
> PDFBOX-3000. The shading is all black (type 0 function that is all black). It
> is cut off in rendering by PDFBox. This is somehow related to the BBox and to
> the cm operation before the sh. Changing them changes the cutoff.
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