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From "bal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PDFBOX-4609) At least one signature is invalid
Date Mon, 05 Aug 2019 13:20:00 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-4609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900074#comment-16900074

bal commented on PDFBOX-4609:

Hi i have attached the signed pdf please check and let me know the reason of the invalid 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: as_Signed.pdf, 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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