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https://issues.apache.org/jira/browse/PDFBOX-4320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christian Lauer updated PDFBOX-4320:
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Description: 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. (was: 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 is absolute perfect.
Besides the mentioned spots, there are some other rendering bugs resulting of
wrong positioning of the graphical elements of the PDF.)
> Weired spots in rendering result ofscanned 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: PDF-1.6, Rendering
> Attachments: 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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