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https://issues.apache.org/jira/browse/PDFBOX-4114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16368380#comment-16368380
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Tilman Hausherr commented on PDFBOX-4114:
-----------------------------------------

I need some time to review the effects with different jdks and different 
configurations (KCMS / LCMS). I ran a rendering diff test and the rendering of 
8 files of 1000 are different. One of them was known to have bad rendering 
(PDFBOX-2917) and that looks good now, so this is getting interesting :)

Shouldn't {{fixProfile}} be called *after* {{is_sRGB}}?

And what if java has fixed this bug in some later version - wouldn't your fix 
"undo" it?

Your parameter is named "cmykProfile" but ICC profiles don't have to be CMYK. 
There can be with 3 colors or gray.

Please edit your question to add what you've found "across internet", i.e. put 
a link or two there.

> ICCBased color spaces wrong color output
> ----------------------------------------
>
>                 Key: PDFBOX-4114
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4114
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel, Rendering
>    Affects Versions: 2.0.8
>            Reporter: Michael Vakulich
>            Priority: Major
>             Fix For: 2.0.9, 3.0.0 PDFBox
>
>         Attachments: ICCBased.patch, compare.jpg, highResPdf-1.jpg, 
> highResPdf.pdf
>
>
> When rendering page with embedded ICC_profile (DeviceCMYK) it has a wrong 
> colors, like semitransparent white plane covering the page
> See the render output
> Looking across internet I've found that this issue is caused because JSK has 
> an issue with using profiles which Class is not Display.
> Here is the one of proposed patches I've found and which worked for me
> Please review proposed patch



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