[
https://issues.apache.org/jira/browse/PDFBOX-5549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17641134#comment-17641134
]
Aleksandr Beliakov commented on PDFBOX-5549:
--------------------------------------------
[~tilman], I did not talk with DocuSign directly but was informed about such
case failing the consecutive signature creation on DocuSign. From information I
have, they will fix the processing on their side, but they have also
recommended to correct implementation on our side (DSS). But as the origin of
this behavior is PdfBox's code, in case a fix is required, it would be better
to fix that for everyone directly in PdfBox.
> Invisible signature field is not referenced from /Annots dictionary of a Page
> -----------------------------------------------------------------------------
>
> Key: PDFBOX-5549
> URL: https://issues.apache.org/jira/browse/PDFBOX-5549
> Project: PDFBox
> Issue Type: Improvement
> Affects Versions: 2.0.27
> Reporter: Aleksandr Beliakov
> Priority: Minor
>
> Hello,
>
> Recently we received a complain about not adding a reference to the newly
> created signature field to the /Annots array of a page dictionary.
> After analyzing the code, we found that PdfBox dependency used in our
> project, skips binding of an invisible signature field from a page
> dictionary. See
> [PDDocument.java#L455:|https://github.com/apache/pdfbox/blob/2.0.27/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/PDDocument.java#L455]
> {code:java}
> if (visualSignature == null)
> {
> prepareNonVisibleSignature(firstWidget);
> return;
> } {code}
> while adding the signature widget to the given page for visible signature
> after.
>
> After analyzing ISO 32000-1/2 I was not able to conclude what is the expected
> behavior in case of invisible signature. While _/Annots_ array within a page
> dictionary is optional and shall contain references to annotations associated
> with a page, the chapter "12.5.2 Annotation dictionaries" also tells "{+}_A
> given annotation dictionary shall be referenced from the Annots array of only
> one page._{+}", which is also ambiguous.
> After checking [OpenPDF|https://github.com/LibrePDF/OpenPDF] library, it
> seems like they associate an invisible signature field with a first page
> explicitly by providing the reference within /Annots array.
>
> Could you please give us information about the rational for skipping the
> invisible signature field from adding into a page's /Annots dictionary and
> confirm whether the behavior is correct?
>
> Thank you!
>
> Best regards,
> Aleksandr.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
