Dear list,
I have a ditally signed PDF/A-3 document, which verapdf-1.9.84 complains about violation of Rule 6.4.3-1.
I’m checking a tool for signing PDF documents. And I don’t know whether a part of the PDF document is missing or that it included the signature data themselves.
Is there any way that I have to check the Rule 6.4.3-1 for any PDF document (even if not a PDF/A document)?
Many thanks for your help,
Pablo
Sorry for asking again, but I really need to know which is the exact failugre with the wrong signature.
I mean, if there is a part of the document which isn’t signed, I need to know which one is.
Could you improve the parser to show that or which is the way to check this?
Many thanks for your help,
Pablo
On 12/08/2017 12:04 PM, Pablo Rodriguez wrote:
Dear list,
I have a ditally signed PDF/A-3 document, which verapdf-1.9.84 complains about violation of Rule 6.4.3-1.
I’m checking a tool for signing PDF documents. And I don’t know whether a part of the PDF document is missing or that it included the signature data themselves.
Is there any way that I have to check the Rule 6.4.3-1 for any PDF document (even if not a PDF/A document)?
Many thanks for your help,
Pablo
Hi Pablo,
The only thing that is checked in the rule 6.4.3-1 is that the /ByteRange entry in the Signature dictionary covers the complete document except for the signature value itself.
If you think veraPDF reports an error incorrectly, feel free to send your PDF document to this mailing list (or to me directly, if you can't share the documents publicly) for closer inspection.
Best regards, Boris
-----Original Message----- From: Users [mailto:users-bounces@lists.verapdf.org] On Behalf Of Pablo Rodriguez Sent: Friday, December 15, 2017 12:33 AM To: users@lists.verapdf.org Subject: Re: [veraPDF-users] Rule 6.4.3-1
Sorry for asking again, but I really need to know which is the exact failugre with the wrong signature.
I mean, if there is a part of the document which isn’t signed, I need to know which one is.
Could you improve the parser to show that or which is the way to check this?
Many thanks for your help,
Pablo
On 12/08/2017 12:04 PM, Pablo Rodriguez wrote:
Dear list,
I have a ditally signed PDF/A-3 document, which verapdf-1.9.84 complains about violation of Rule 6.4.3-1.
I’m checking a tool for signing PDF documents. And I don’t know whether a part of the PDF document is missing or that it included the signature data themselves.
Is there any way that I have to check the Rule 6.4.3-1 for any PDF document (even if not a PDF/A document)?
Many thanks for your help,
Pablo
-- http://www.ousia.tk _______________________________________________ Users mailing list Users@lists.verapdf.org http://lists.verapdf.org/listinfo/users
Hi Boris,
many thanks for your reply.
The problem with the PDF/A-3 document may not be that veraPDF isn’t checking it right, but that the document isn’t fully signed.
I attach the certificate (it’s a dummy one [with password 123456]), the unsigned PDF/A-3a document and the signed document (which is invalid because of the signature).
Sorry, I knew that the /ByteRange entry contains the information of what is signed, but I don’t know how to read that array.
Many thanks for your help,
Pablo
On 12/15/2017 10:48 AM, Boris Doubrov wrote:
Hi Pablo,
The only thing that is checked in the rule 6.4.3-1 is that the /ByteRange entry in the Signature dictionary covers the complete document except for the signature value itself.
If you think veraPDF reports an error incorrectly, feel free to send your PDF document to this mailing list (or to me directly, if you can't share the documents publicly) for closer inspection.
Best regards, Boris
users@lists.openpreservation.org
-
Boris Doubrov -
Pablo Rodriguez