[jira] Updated: (PDFBOX-933) "Limits" entry should not added to the root node dictionary of name trees

["Petras (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Petras updated PDFBOX-933:
--------------------------

    Attachment: sample.pdf

PDF document created by org.apache.pdfbox.examples.pdmodel.EmbeddedFiles example

> "Limits" entry should not added to the root node dictionary of name trees
> -------------------------------------------------------------------------
>
>                 Key: PDFBOX-933
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-933
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 1.4.0
>         Environment: Adobe Acrobat Pro v9.4.1, Windows 7 Pro x64
>            Reporter: Petras
>         Attachments: sample.pdf
>
>
> Embedding file using PDComplexFileSpecification (as shown in org.apache.pdfbox.examples.pdmodel.EmbeddedFiles example) adds "Limits" entry to the name tree root node dictionary associated with EmbeddedFiles entry in PDF documents name dictionary. Here is a fragment taken from the PDF document created by EmbeddedFiles example:
> ...
> 3 0 obj
> <<
> /EmbeddedFiles 5 0 R
> >>
> 5 0 obj
> <<
> /Limits [(My first attachment) (My first attachment)]
> /Names [(My first attachment) 8 0 R]
> >>
> ...
> Such PDF document opened in Adobe Acrobat does not show embedded files in attachments panel, unless "Limits" entry is removed or commented.
> According to PDF3200:2008 specification (see clause "7.9.6 Name Trees") "Limits" entry in name tree node dictionary can only appear in intermediate or leaf node, but not root node.
> "The tree shall always have exactly one root node, which shall contain a single entry: either Kids or Names but not both. If the root node has a Names entry, it shall be the only node in the tree. If it has a Kids entry, each of the remaining nodes shall be either an intermediate node, that shall contain a Limits entry and a Kids entry, or a leaf node, that shall contain a Limits entry and a Names entry."

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