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From "Tilman Hausherr (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (PDFBOX-4609) At least one signature is invalid
Date Sat, 27 Jul 2019 09:17:00 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-4609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16893989#comment-16893989
] 

Tilman Hausherr edited comment on PDFBOX-4609 at 7/27/19 9:16 AM:
------------------------------------------------------------------

There can be so many reasons. If you can't share the file, then sign a non confidential file,
i.e. some PDF from the internet.


was (Author: tilman):
There can be so many reasons. If you can't share the file, then sign a public file.

> 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
>
> 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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