[jira] [Commented] (PDFBOX-4771) JPEG image with transparency can't be extracted

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-4771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17035607#comment-17035607 ] 

ASF subversion and git services commented on PDFBOX-4771:
---------------------------------------------------------

Commit 1873953 from Tilman Hausherr in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1873953 ]

PDFBOX-4771: transparent images always into png

> JPEG image with transparency can't be extracted
> -----------------------------------------------
>
>                 Key: PDFBOX-4771
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4771
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 2.0.18
>            Reporter: Tilman Hausherr
>            Priority: Major
>             Fix For: 2.0.19, 3.0.0 PDFBox
>
>
> See TIKA-3040, "javax.imageio.IIOException: Bogus input colorspace" when trying to save /DCTDecode encoded image that has a mask, because JPEG images can't have alpha.
> I need to think about this a bit, but we'll probably have to save it as a PNG image.



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