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https://issues.apache.org/jira/browse/PDFBOX-1810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13851687#comment-13851687
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Frederik Bertling commented on PDFBOX-1810:
-------------------------------------------

Hi Tilman, thanks for taking care.
I think that pdf was created by using the "scan text" feature of simple scan 
which might limit the colours to 4 grey types. I could try to find a scan 
feature which scans black and white only, if that is what you mean by providing 
an image with just black and white?

So far, this seems to be a problem with color space conversion?

At least, imageMagick does a correct image conversion.

> PDFToImage: Image of pdf is resized and drawn multiple times at top of output 
> image
> -----------------------------------------------------------------------------------
>
>                 Key: PDFBOX-1810
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1810
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 1.8.2, 1.8.3, 2.0.0
>         Environment: Debian testing, OpenJDK7
>            Reporter: Frederik Bertling
>         Attachments: K3.pdf, K31.jpg, K32.jpg, PDFBOX-1810.pdf-1.png
>
>
> Hi,
> all the pdfs created with simple scan (https://launchpad.net/simple-scan) are 
> not correctly converted into images.
> A single page is resized and drawn multiple times at the top of the output 
> image. 
> Using the pdfbox app on windows with the newest orcale java 7 causes a java 
> heap error.



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