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From "Tilman Hausherr (Jira)" <j...@apache.org>
Subject [jira] [Comment Edited] (PDFBOX-4702) signature verification in Adobe products
Date Tue, 03 Dec 2019 04:54:00 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-4702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16986608#comment-16986608
] 

Tilman Hausherr edited comment on PDFBOX-4702 at 12/3/19 4:53 AM:
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In the unsigned file, /Annots is an indirect object. In the "good" signed file, /Annots is
a direct object. This could become a problem when signing a signed file (PDFBOX-3114, see
my comment and related link on december 12.12.2015 and later). Ideally this should stay as
it is.


was (Author: tilman):
In the unsigned file, /Annots is an indirect object. In the "good" signed file, /Annots is
a direct object. This could become a problem when signing a signed file (PDFBOX-3114). Ideally
this should stay as it is.

> signature verification in Adobe products
> ----------------------------------------
>
>                 Key: PDFBOX-4702
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4702
>             Project: PDFBox
>          Issue Type: Improvement
>            Reporter: Jason Pyeron
>            Priority: Major
>         Attachments: image-2019-12-01-17-33-28-155.png, image-2019-12-02-06-31-12-527.png,
image-2019-12-02-16-50-30-220.png, image-2019-12-02-16-51-06-551.png, pdfbox-4702-signed-Adobe.pdf,
pdfbox-4702-signed-PDFBOX-Tilman.pdf, pdfbox-4702-signed-PDFBOX.pdf, pdfbox-4702-unsigned-SignedAndLockedWithLocking.pdf,
pdfbox-4702-unsigned.pdf, pdfbox-4702.pdf, screenshot-1.png, test_signed.pdf
>
>
> Signatures with appearances have some unknown validation, that is resulting in "Bad parameter"
error when validating. 
> See mailing list thread: https://lists.apache.org/thread.html/dde2f9531be0126402251b9fa95bd2274c1162fe5806420cbe1ca9ee@%3Cdev.pdfbox.apache.org%3E



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