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https://issues.apache.org/jira/browse/PDFBOX-3000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15740630#comment-15740630
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Jon Wu commented on PDFBOX-3000:
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I see now that my example was confusing. snowman-nose-gradient.pdf was saved in
CMYK mode and I was accidentally looking at a non-Adobe rendering when writing
my last comment. Preview.app, Chrome, Firefox / pdf.js all render the correct
shape and the right side of the gradient always ends in the correct place. I
think that the last CMYK gradient issue in PDFBOX-2681 is why the Adobe
rendering shows more white on the left of CMYK snowman-nose-gradient.pdf.
I've uploaded the same file saved as RGB snowman-nose-gradient-rgb.pdf with 2
red lines to demonstrate the issue I was trying to show. The rendered version's
gradient should almost touch both red lines and should appear centered in the
document. You'll also notice that the left side isn't white in the Adobe
rendering in the RGB version.
I hope this is a little clearer but let me know if I can provide better details
or examples.
> Transparency Group issues
> -------------------------
>
> Key: PDFBOX-3000
> URL: https://issues.apache.org/jira/browse/PDFBOX-3000
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.0
> Reporter: John Hewson
> Fix For: 2.1.0
>
> Attachments: 007087-payment-due-p58_reduced2.pdf,
> PDFBOX-1697-reduced-rotations.pdf, PDFBOX-2182_mod.pdf, PDFBOX-3400-RGB.pdf,
> PDFBOX-3494_reduced.pdf, PDFBOX-3494_reduced_cropX.pdf, PDFBOX-3564-Mask.pdf,
> PDFBox3359PanelTestEnhanced.java, PDFJS-2845-p1.pdf,
> PDFJS-5811-2-p3_reduced.pdf, PDFJS-5811-2-p3_reduced4.pdf,
> PDFJS-5811-2-p4_reduced-rotations.pdf, PDFJS-5811-2.pdf,
> PDFJS-5853_reduced.pdf, circle-simple.pdf,
> ds-firewall-enterprise-p1_reduced.pdf, gs-bugzilla689309-reduced-bc0.pdf,
> gs-bugzilla689309-reduced-bc1.pdf, gs-bugzilla689309-reduced.pdf,
> gs-bugzilla691157.pdf, gs-bugzilla691157_mod_unc.pdf,
> gs-bugzilla691157_mod_unc.png, gs-bugzilla691348.pdf,
> gs-bugzilla692217_reduced.pdf, gs-bugzilla693322_reduced.pdf,
> gs-bugzilla694556-3.pdf, gs-bugzilla695354.pdf,
> gs-bugzilla695582-transparency-fill-stroke.pdf,
> gs-bugzilla695582-transparency-fill-stroke.pdf-1.png,
> samsung_galaxy_s_4_um-p1_reduced.pdf, snowman-nose-gradient-rgb.pdf,
> snowman-nose-gradient-screenshot-comparison-11.12.2016.jpg,
> snowman-nose-gradient.pdf, snowmen-opacity-clipping-masks-2.0.3.png,
> snowmen-opacity-clipping-masks-2.1-SNAPSHOT-10.12.2016.png,
> snowmen-opacity-clipping-masks-2.1.0-SNAPSHOT-2016-12-07.png,
> snowmen-opacity-clipping-masks-adobe-illustrator.png,
> snowmen-opacity-clipping-masks.pdf, softmask-rewrite-alt1.patch,
> softmask-rewrite.patch
>
>
> This is a follow-up issue for transparency group issues from PDFBOX-2423.
> More details to come.
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