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https://issues.apache.org/jira/browse/PDFBOX-5539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17704933#comment-17704933
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Tilman Hausherr commented on PDFBOX-5539:
-----------------------------------------

Some problems:
1) After an actual object has been shown, the right window pane no longer 
changes when moving at the left
2) Attached file  [^Frühlingsangebot.pdf] object 30, when clicking on the 
image, I get "ClassCastException: org.apache.pdfbox.debugger.ui.XrefEntries 
cannot be cast to org.apache.pdfbox.cos.COSDictionary" in 
PDFDebugger.showStream().

> Show CRT in PDFDebugger
> -----------------------
>
>                 Key: PDFBOX-5539
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5539
>             Project: PDFBox
>          Issue Type: New Feature
>          Components: Utilities
>    Affects Versions: 2.0.27, 3.0.0 PDFBox
>            Reporter: Moritz Flöter
>            Assignee: Andreas Lehmkühler
>            Priority: Major
>         Attachments: Frühlingsangebot.pdf
>
>
> For analyzing potentially erroneous PDFs it would be quite helpful to be able 
> to show the CRT (Cross Reference Table/xref) and navigate to its entries.
> Some software does provide rather technical (and therefore quite precise) 
> information about errors in the PDF files mentioning the object number in the 
> pdf file instead of page numbers. With PDF-Debugger, I currently have to 
> navigate the Document Catalog Tree structure to find the object. Furthermore, 
> navigating the tree structure does enable one to view unreferenced objects.



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