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Posted to dev@pdfbox.apache.org by "Andreas Lehmkühler (JIRA)" <ji...@apache.org> on 2013/08/31 10:04:52 UTC

[jira] [Commented] (PDFBOX-1711) Loss of colour precision in exporting PDF to image

    [ https://issues.apache.org/jira/browse/PDFBOX-1711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755457#comment-13755457 ] 

Andreas Lehmkühler commented on PDFBOX-1711:
--------------------------------------------

The pdf contains group XObjects a special type of form XObjects which are currently not supported
                
> Loss of colour precision in exporting PDF to image
> --------------------------------------------------
>
>                 Key: PDFBOX-1711
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1711
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 1.8.2
>            Reporter: Dave Sowerby
>         Attachments: input.pdf, output.png
>
>
> In attempting to convert a PDF which makes use of CMYK colours as well as colour transparencies, but the output I'm seeing doesn't match the input.  
> I'm using the command line PDFToImage and have output in a lossless format and attempted to use all potential color depths to see if I can find a workable option.  

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