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https://issues.apache.org/jira/browse/PDFBOX-4417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-4417:
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Comment: was deleted
(was: Possible explanation for the double StructTreeRoot is that when cloning,
the root doesn't exist in the cloner map. Thus it is cloned when accessed
through the /P (parent) entries.
A possible solution that I'll think about is whether to add the ability to add
elements to the map of the cloner.)
> Merged file has several structure trees
> ---------------------------------------
>
> Key: PDFBOX-4417
> URL: https://issues.apache.org/jira/browse/PDFBOX-4417
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.0.13
> Reporter: Tilman Hausherr
> Priority: Major
> Labels: StructureTree
> Fix For: 2.0.14, 3.0.0 PDFBox
>
> Attachments: 001031.pdf, 054080.pdf, PDFBOX-4417-merged-bad.pdf
>
>
> Something goes wrong with all the cloning. The result file has a
> StructTreeRoot at objects 8, 697 and 730. And there is also the "COSStream
> has been closed and cannot be read" exception (PDFBOX-3999) if one closes the
> source before saving.
> If the close is removed the current tests pass, so the tests are not yet
> complete.
> Merging [^001031.pdf] (file from FDA) with itself also brings an orphan
> check error.
> Merging [^054080.pdf] (file also at
> https://pubs.usgs.gov/wdr/wdr-sc-04/wy04/pdfs/02148000.2004.sw.pdf ) with
> itself also shows two StructTreeRoot dictionaries (and no other failing test,
> despite the commits related to [^001031.pdf] ).
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