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From "Tilman Hausherr (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (PDFBOX-4320) Weird spots in rendering result of scanned PDF 1.6 document
Date Mon, 01 Oct 2018 15:38:00 GMT

     [ https://issues.apache.org/jira/browse/PDFBOX-4320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tilman Hausherr closed PDFBOX-4320.
-----------------------------------
    Resolution: Duplicate

Closing as duplicate of PDFBOX-1752. See my latest comment there how to fix this bug in the
plugin.

> Weird spots in rendering result of scanned PDF 1.6 document
> -----------------------------------------------------------
>
>                 Key: PDFBOX-4320
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4320
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Rendering
>    Affects Versions: 2.0.11
>            Reporter: Christian Lauer
>            Priority: Major
>              Labels: JPEG2000, JPG2000, JPXDecode, JPXFilter
>         Attachments: PDFBOX-4320.jp2, scanned.pdf, weired.tiff
>
>
> The rendering of some scanned Documents in PDF 1.6 format result shows weired blurred
black spots. It seems to me that the scanning software detects form areas and moves them in
separate elements, which are not rendered by PDFBox. The result in Adobe Reader and other
conversion tools like Image Magick (which is using ghostscript as PDF renderer) is absolute
perfect. Besides the mentioned spots, there are some other rendering bugs resulting of wrong
positioning of the graphical elements of the PDF.



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