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https://issues.apache.org/jira/browse/PDFBOX-4297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17207887#comment-17207887
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Ralf Hauser commented on PDFBOX-4297:
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4) it would be great to obtain the PKCS7 signature-block (e.g. as byte-array)
as return object
> Allow to space efficiently analyse large PDFs
> ---------------------------------------------
>
> Key: PDFBOX-4297
> URL: https://issues.apache.org/jira/browse/PDFBOX-4297
> Project: PDFBox
> Issue Type: Improvement
> Components: Parsing
> Reporter: Ralf Hauser
> Priority: Major
>
> Assume you get a 300+MB large pdf and need to know
> 1) the file names of embedded files if any
> 2) whether it is encrypted (symmetric or asymmetric)
> 3) certification level (and whether it is signed)
> This should not use more than 5 MB (extra) memory
>
> P.S.: seems to an exampe of https://pdfbox.apache.org/ideas.html "Handle
> large PDF files"
>
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