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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2014/10/17 08:45:33 UTC

[jira] [Commented] (PDFBOX-2435) ConvertToImage Appears To Invert Colors

    [ https://issues.apache.org/jira/browse/PDFBOX-2435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14174782#comment-14174782 ] 

Tilman Hausherr commented on PDFBOX-2435:
-----------------------------------------

A quick look shows that this is a CCITT encoded image with BlackIs1 = true and a decode array of [1 0], i.e. twice reversed. It renders fine in 2.0 but not in 1.8.*. I will hopefully find the cause tonight or this weekend, i.e. which of the reversions is ignored and why.

> 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
>              Labels: CCITTFaxDecode
>             Fix For: 1.8.8
>
>         Attachments: 123.PDF, 123.png
>
>
> the colors are reversed when I call convertToImage API in PDPage class.



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