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https://issues.apache.org/jira/browse/PDFBOX-2435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175299#comment-14175299
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Tilman Hausherr commented on PDFBOX-2435:
-----------------------------------------

It was correct in 1.8.4 and no longer correct in 1.8.5. I suspect this was 
introduced with the fix for PDFBOX-1998, where the problem image had a 
different filter. The cause of the problem is that the decode array is 
considered twice: once in PDCcitt.getRGBImage(), once in 
PDXObjectImage.imageMask(). I'll change that PDCcitt.getRGBImage() ignores the 
decode array if it is a mask.

I'll commit after running a larger test set.

> ConvertToImage Appears To Invert Colors
> ---------------------------------------
>
>                 Key: PDFBOX-2435
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2435
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Writing
>    Affects Versions: 1.8.7, 1.8.8
>            Reporter: lufeng
>            Assignee: Tilman Hausherr
>              Labels: CCITTFaxDecode, regression
>             Fix For: 1.8.8
>
>         Attachments: 123.PDF, 123.png, screenshot-1.png
>
>
> the colors are reversed when I call convertToImage API in PDPage class.



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