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Questions tagged [pades]

PAdES (PDF Advanced Electronic Signatures) is a standard for enabling digital signature and (eventually) court validity of digitally signed documents in PDF format

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How to tell if a XADES signature is QSCD compliant

I have an XML file which has been signed with XADES using qualified digital signature. How do I tell if this signature is QSCD compliant? Is this something: that is recorded in the XML signature nodes, for instance as a child node under…
Matt
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PKCS11 encrypt hash with RSA private key

We are building a Digitial Signing platform. Per user we generate a RSA 2048 key pair in an HSM, and issue a X509 digital certificate. During PAdEs or CAdES digital signing (Enveloping) we get the SHa256 hash 32 bytes that needs to be encrypted with…
user1912383
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Duplicate certificates in DSS/VRI dictionary PDFBox (PAdES-LT/LTA)

I'm using PDFBox to sign (PAdES -LTA) PDF documents.I was able to get a PAdES-LT signature, but when I checked the signature using ETSI Signatures Conformance Checker I noticed that there were duplicate certificates in the DSS and VRI…
3de
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Base64 digest + PFX(PKCS12) -> ETSI.CAdES.detached signature -> PAdES LTV

I have an API that creates Base64 digest of a PDF Document. Now I want to create another API that takes this digest and PFX and creates an ETSI.CAdES.detached signature and takes LTV informations(Certs chain,OCSP response,CRL) that I want to embed…
3de
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Extract info about signatures - Cades & Pades (Java)

I have a document (pdf) signed with 1 Pades signature and 2 Cades signatures and I need to extract the information about the signer of each signature. I'm using CMSSignedData (bouncy castle library), but when I try to get the info, I only get the…
user10488162
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Qualified signature showing invalid only in Adobe Reader

Here is PDF with qualified electronic signature pdf-qualified.invalid.pdf All validation apps show it correct as PAdES-BASELINE-LT, however Adobe Reader shows it invalid. What is wrong with this digitally signed PDF? It includes CAdES-BASELINE-LT…
Margus Pala
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How to sign documents with an advanced electronic signature after KYC

In order to onboard users, we have to identify them and they need to sign a contract (through our web application). The signed contract must be compliant with eIDAS AdES, so a PAdES. The users are identified either through SPID or onfido (but it…
Denis Frezzato
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PDF signature ignored by Acrobat but visible in other validation tools

We're making a webapp whose one of the functionalities is to make PaDES signature. The code is too big to share here, but here is how the workflow looks like: PDF is prepared for signing by doing all the necessary transformations in browser Digest…
user3362334
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XAdES equivalent of PAdES timestamp

Is there an equivalent in XAdES for the PAdES timestamp where the PDF gets "signed" by the TSA? I don't mean XAdES-T where, if I understand correctly, a timestamp is added to an existing signature, I'm looking for something like this (A.2 page 15):…
Sesto
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Visible Signature in a PDF file

I 'm trying to create a visible signature in a PDF file. Taking a simple PDF "hello world" file: %PDF-1.7 1 0 obj % entry point << /Type /Catalog /Pages 2 0 R >> endobj 2 0 obj << /Type /Pages /MediaBox [ 0 0 200 200 ] /Count 1 /Kids…
Michael Chourdakis
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Updating an existing PDF to add a signature

My project is to add a digital signature to an existing PDF if Windows, in C++, with PAdES support. Studying base aspects of the PDF format and the output of jSignPdf, I 've managed to be able to sign successfully any existing PDF file and Adobe…
Michael Chourdakis
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Can one remove or revoke digital signature on PDF document?

I have a theoretical question about PAdES. I want to know if it is possible to revoke a signature in PDF or remove it?
user218046
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PAdeS digital sign of PDF document with iTextSharp 7 and smartcard

I've found many documents/posts/etc on how to digitally sign a PDF document with PAdeS standard with .NET and iTextSharp but till version 5.x of the library. Now using nuGet it is recommended to use the new version 7 of that library but no document…
crick77
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Does iText Community 5.4.2 support creating Digital Signature 'PAdES'

Does 'iText' community version 5.4.2 support creating 'PAdES' Digital Signature standard for PDF files ? Thank you very much in Advance Best Regards Pearapon S. Bangkok, Thailand
Pearapon Joe
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PDF and PAdES (PDF/A-2 and PDF 2.0)

PDF/A-2 PDF/A-2 carries over provisions from the ETSI/PadES standard. (source) Is PAdES mandatory for PDF/A-2? Or are other signature formats in PDF/A-2 also allowed? PDF 2.0 ETSI will feed these European-specific elements back into ISO for …
hagem
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