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Posted to dev@pdfbox.apache.org by "Lux (JIRA)" <ji...@apache.org> on 2018/06/08 13:03:00 UTC

[jira] [Comment Edited] (PDFBOX-4239) How to avoid invalid signature after pdfbox modify a signed PDF

    [ https://issues.apache.org/jira/browse/PDFBOX-4239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16505994#comment-16505994 ] 

Lux edited comment on PDFBOX-4239 at 6/8/18 1:02 PM:
-----------------------------------------------------

[~msahyoun] Sorry, I copy the itext add annotation code here. Let me find Pdfbox version.
actually, if a pdf with certified signature. I saw Adobe allow actions after sign. seems no way to add or modify anything if want signature valid.
Do you know how to add a text annotation or text field to pdf , And dont make certified sign invalid ?
Or how to avoid can't view in IE11 after IE pdfreader plugin validate all signature.


was (Author: luxjavecode):
[~msahyoun] Sorry, I copy the itext add annotation code here. Let me find Pdfbox version.
actually, if a pdf with certified signature. I saw Adobe allow actions after sign. seems no way to add or modify anything if want signature valid.
Do you know how to add a text annotation or text field to pdf , And dont make certified sign invalid ?

> How to avoid invalid signature after pdfbox modify a signed PDF
> ---------------------------------------------------------------
>
>                 Key: PDFBOX-4239
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4239
>             Project: PDFBox
>          Issue Type: Wish
>          Components: Signing
>    Affects Versions: 2.0.2
>            Reporter: Lux
>            Priority: Major
>         Attachments: 0608_1.jpg
>
>
> Dear Team
> Our team need add some text into a signed PDF, But we got a pdf with an invalid signture.
> So that sometimes we can't view it on IE.
> Do you know how to avoid invalid signature after modify a signed pdf.
> Looking forward your reply. Thanks in advance.



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