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https://issues.apache.org/jira/browse/PDFBOX-2801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550159#comment-14550159
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Andreas Lehmkühler commented on PDFBOX-2801:
--------------------------------------------
Sorry, but that's not the same. The origin report adresses not encrypted fields
in an encrypted pdf. Your sample on the contrary is a manually corrupted pdf.
Maybe my former comment wasn't that clear. We should check if your file is
malformed or not. Is the mentioned "TU" entry the one and only field which
isn't encrypted? Does the encryption dictionary contain any "StmF" or "StrF"
entries?
> SecurityHandler does not tolerate plain-text COSString
> ------------------------------------------------------
>
> Key: PDFBOX-2801
> URL: https://issues.apache.org/jira/browse/PDFBOX-2801
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.0
> Reporter: Michele Balistreri
> Attachments: AES_fullencryption_corrupted.pdf,
> SecurityHandler-tolerant-decrypt.diff
>
>
> SecurityHandler does not handle the possibility, that a COSString is already
> plain text if the document is encrypted. This patch makes it tolerant when
> decrypting COSString, so that if it fails it just logs that and keeps the
> original content. The code works with all files I have.
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