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https://issues.apache.org/jira/browse/PDFBOX-4418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr resolved PDFBOX-4418.
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Resolution: Fixed
> ParentTree can't be merged if it has several levels
> ---------------------------------------------------
>
> Key: PDFBOX-4418
> URL: https://issues.apache.org/jira/browse/PDFBOX-4418
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.0.13
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Major
> Labels: StructureTree
> Fix For: 2.0.14, 3.0.0 PDFBox
>
> Attachments: 000314.pdf, 000671.pdf
>
>
> Related to fixing PDFBOX-4003 - a number tree can have several levels.
> Currently the merge code expects a NUMS array, but it can also have KIDS. So
> the code must be changed so that it uses the new convenience class to handle
> a number tree in full. See also code comment
> {code:java}
> //TODO this code only works with flat number trees.
> // It should be a PDNumberTreeNode, but that class is broken because
> // COSBase can't be instanciated and because the tree elements can
> // be an array or a dictionary
> // example of file with /Kids: 000153.pdf 000208.pdf 000314.pdf 000359.pdf
> 000671.pdf
> // from digitalcorpora site
> {code}
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