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https://issues.apache.org/jira/browse/PDFBOX-6024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18090588#comment-18090588
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Tilman Hausherr commented on PDFBOX-6024:
-----------------------------------------
There are many differences where I can't tell whether it is better or not.
[^gs-bugzilla689931_reduced-Screen.pdf]
[^gs-bugzilla689931_reduced-Multiply.pdf]
[^gs-bugzilla689309-reduced-bc1_RGB.pdf] are clearly wrong
PDFJS-5853.pdf is slightly better.
> Incorrect rendering of complex masks
> ------------------------------------
>
> Key: PDFBOX-6024
> URL: https://issues.apache.org/jira/browse/PDFBOX-6024
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 3.0.5 PDFBox
> Reporter: Daniel Persson
> Priority: Major
> Attachments: DN-A4-20250604-A-06-Nyheter.pdf, adobe.png,
> gs-bugzilla689309-reduced-bc1_RGB.pdf,
> gs-bugzilla689931_reduced-Multiply.pdf, gs-bugzilla689931_reduced-Screen.pdf,
> p1_proportional_mapping.patch, pdfbox.jpg, poppler-1.png
>
>
> This PDF seems to render incorrectly. I can view it in Adobe and Chrome
> correctly but neither Poppler or PDFBox render it correctly.
> The masking of the left image is strange so it adds and extra orange border.
> I've looked into the PDF a bit and it seems to be multiple masks in ExtGState
> then rendered with an rect inside of a Form. So solving this is probably not
> easy.
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