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From "Daniel Wilson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PDFBOX-1128) Wrong color space used for DeviceN operator without color space specified
Date Thu, 13 Oct 2011 14:56:11 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126641#comment-13126641

Daniel Wilson commented on PDFBOX-1128:

The stencil mask looks lots better!  Awesome!
> 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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