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Date: Sun, 13 Dec 2015 16:35:46 +0000 (UTC)
From: "Tilman Hausherr (JIRA)" <jira@apache.org>
To: dev@pdfbox.apache.org
Message-ID: <JIRA.12913710.1447770047000.9215.1450024546907@Atlassian.JIRA>
In-Reply-To: <JIRA.12913710.1447770047000@Atlassian.JIRA>
References: <JIRA.12913710.1447770047000@Atlassian.JIRA>
 <JIRA.12913710.1447770047841@arcas>
Subject: [jira] [Updated] (PDFBOX-3114) Visible signatures in different
 pages changes previous revision
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     [ https://issues.apache.org/jira/browse/PDFBOX-3114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr updated PDFBOX-3114:
------------------------------------
    Attachment: test1_invisiblysigned_COSWriterModified_p1p2_ERR.pdf

test1_invisiblysigned_COSWriterModified_p1p2_ERR.pdf is the test1 file signed twice with 3 modifications in COSWriter.visitFromDictionary(). However  the problem is still there, although Adobe Reader no longer insists that a specific page is wrong.

> Visible signatures in different pages changes previous revision
> ---------------------------------------------------------------
>
>                 Key: PDFBOX-3114
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-3114
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Signing
>    Affects Versions: 2.0.0
>         Environment: Compiled with jdk1.8.0_60, tested with Adobe Acrobat XI Pro v.11.0.13
>            Reporter: Luca Battistelli
>            Priority: Blocker
>         Attachments: PDFBOX-3114-screenshot.png, pdfbox-2.0.0-RC1_issue.zip, test1_invisiblysigned_COSWriterModified_p1p2_ERR.pdf, test1_invisiblysignednoannotations_p1p2.pdf, test1_signedinvisible_p2.pdf, test_Acrobat_iText.zip
>
>
> I tried to make two visible signatures in a 2-pages pdf file using pdfbox-2.0.0-RC1.
> I followed the example in SVN directory
> https://svn.apache.org/viewvc/pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/signature/
> I have just modified CreateVisibleSignature class customizing the input parameters and the page to sign.
> If both the signatures are made in the same page, no error occurs. If signatures are made in different pages (e.g. signature 1 in page 1 and signature 2 in page 2), when I open the pdf file with Adobe Acrobat XI Pro (v.11.0.13) it tells that signature 1 is not valid.
> The attachment below refers to the source/resourse zip file. It contains:
> - test.docx: 2-pages test document generated with Microsoft Office Professional Plus 2013
> - test1.pdf: pdf version that generates error (created with Word by selecting "Save as Adobe PDF" option)
> - test1_*.pdf: signed pdf files with error
> - test2.pdf: pdf version that generates no error (created with Word by selecting "Save as" option and then "*.PDF")
> - test2_*.pdf: signed pdf files with no error
> - CreateVisibleSignature.java: customized source code 
> - stamp.png: signature image
> - test.p12: key store (password 12345)


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