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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2018/09/21 15:40:00 UTC
[jira] [Comment Edited] (PDFBOX-4320) Weird spots in rendering
result of scanned PDF 1.6 document
[ https://issues.apache.org/jira/browse/PDFBOX-4320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623782#comment-16623782 ]
Tilman Hausherr edited comment on PDFBOX-4320 at 9/21/18 3:39 PM:
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Sadly this is a duplicate of PDFBOX-1752 and there's nothing we can do because it is a java imaging bug so I intend to close this as a duplicate.
Can you describe the "other rendering bugs"?
was (Author: tilman):
Sadly this is a duplicate of PDFBOX-1752 and there's nothing we can do because it is a java imaging bug.
Can you describe the "other rendering bugs"?
> 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: 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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