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From "bal (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (PDFBOX-4556) how the visual representation of the signature is achieved
Date Wed, 24 Jul 2019 03:36:00 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-4556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891560#comment-16891560
] 

bal edited comment on PDFBOX-4556 at 7/24/19 3:35 AM:
------------------------------------------------------

Hi, 

Can u please tell me what may be the possibilities to get invalid signature after signature
insertion resulting into invalid pdf.?What may be the changes pdfbox do that are disallowed
by acrobat due to which it results in invalid pdf. If pdf with invisible signature is signed
can it generate valid pdf with signature?  Is there any role of Bouncycastle to produce valid
pdf?  I tried to remove unwanted trailer entry but didn't work. Thanks in advance. 


was (Author: bal@123):
Hi, 

Can u please tell me what may be the possibility to get invalid signature. 

> how the visual representation of the signature is achieved  
> ------------------------------------------------------------
>
>                 Key: PDFBOX-4556
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4556
>             Project: PDFBox
>          Issue Type: Wish
>          Components: .NET
>    Affects Versions: 1.8.16
>            Reporter: bal
>            Priority: Major
>              Labels: how-to
>         Attachments: pdfImage-modified-by-tilman.pdf, pdfImage1.pdf, pdfImage1_modified_by_Tilman2.pdf,
png.png
>
>




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