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https://issues.apache.org/jira/browse/PDFBOX-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126000#comment-13126000
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Andreas Lehmkühler commented on PDFBOX-1128:
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I guess I resolved the issue in revision 1182494.
The stencil mask works better than before. Former PDFBox versions always used
black as color for the stencil mask and now following the specs the non
stroking color will be used :-)
There is one TODO left. The stencil mask creation is based on default values
([0,1]) for the DecodeArray. Does anyone have a sample using [1,0] as
DecodeArray?
> Wrong color space used for DeviceN operator without color space specified
> -------------------------------------------------------------------------
>
> Key: PDFBOX-1128
> URL: https://issues.apache.org/jira/browse/PDFBOX-1128
> Project: PDFBox
> Issue Type: Bug
> Components: PDFReader, PDModel
> Affects Versions: 1.6.0
> Reporter: Simon Maskell
> Assignee: Andreas Lehmkühler
> Priority: Minor
> Fix For: 1.7.0
>
> Attachments: DeviceN.patch, test4.pdf, test4.pdf-1.png
>
>
> I have a PDF that uses a DeviceN color space, but when using the PDFToImage
> utility I noticed that some of the text comes out as cyan.
> I tracked the issue down to when the scn or SCN operator is used without
> setting the color space explicitly (ie using the current color space). I
> have attached a patch which resolves the issue by reinstating the original
> (DeviceN) color space after using the alternate color space, otherwise the
> alternate color space (in this case CMYK) was seen as the current color space
> and the attribute of 1 for the scn operator, which was meant for the DeviceN
> color space, is used in the CMYK color space resulting in the cyan.
> I have also attached an example PDF and the result for the PDFToImage
> conversion.
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