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https://issues.apache.org/jira/browse/PDFBOX-4609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16911993#comment-16911993
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bal commented on PDFBOX-4609:
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i had implemented the signatureinterface that why signature is attached in pdf.
i tried to implement the sign() method in the signatureinterface derived class
but couldn't create the keystore as in java which contains the alias and the
pin . The bouncy castle example shows it is used to create the pkcs
signature, i already have signature in pkcs format. It is not usable for me
for the valid signature. Is another options to pass the correct input to sign
method for valid signature?
> At least one signature is invalid
> ----------------------------------
>
> Key: PDFBOX-4609
> URL: https://issues.apache.org/jira/browse/PDFBOX-4609
> Project: PDFBox
> Issue Type: Wish
> Components: .NET
> Affects Versions: 1.8.15
> Reporter: bal
> Priority: Major
> Attachments: Debug.txt, keystore.p12
>
>
> I am getting signature is invalid error in the signature panel of pdf after
> pkcs 7 signature insertion. I can see the name of the signer with the signed
> by in signature panel. I am not able to find out disallowed changes pdfbox
> does resulting into invalid pdf by acrobat reader. Is it possible to
> validate the pdf with pdfbox? Thanks in advance.
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