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https://issues.apache.org/jira/browse/PDFBOX-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042315#comment-14042315
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Pat Hickey commented on PDFBOX-1872:
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Sorry, I replied from my mailer. It was I who opened the issue in the first
place. I know that the document was decrypted before an attempt was made to
fetch the MetaData. I'll see if I can find a public example...
> PDMetadata.exportXMPMetadata fails when Metadata has encrypted stream
> ---------------------------------------------------------------------
>
> Key: PDFBOX-1872
> URL: https://issues.apache.org/jira/browse/PDFBOX-1872
> Project: PDFBox
> Issue Type: Bug
> Components: JempBox, PDModel
> Affects Versions: 1.8.3
> Environment: Not sure it matters, but Solaris (SunOS 5.10), java
> 1.6.0_19,
> Reporter: Pat Hickey
> Assignee: Andreas Lehmkühler
> Priority: Minor
>
> When the Metadata is encoded with the Crypt filter, exportMetadata() fails to
> parse the XML. My guess is that PDDocumentCatalog.getMetadata() gives
> PDMetadata the raw stream, instead of the filtered one. Then
> PDMetadata.exportXMPMetadata() calls XMPMetadata.load(), which cannot parse
> the encrypted stream.
> While I cannot post the document (proprietary), the outline shown by
> PDFDebugger goes like this:
> Root:Dictionary(Catalog)
> + AcroForm:Dictionary
> - Metadata:Stream(Metadata:XML)
> - Filter:Array
> o [0] Crypt
> o Length:6302
> o Subtype:XML
> o Type:Metadata
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