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Audit PDF signatures, PAdES baseline evidence, certificate chains, DSS, revocation material and timestamps offline.
Details
Rebuilds PDF ByteRange bytes, verifies CMS signed attributes and messageDigest, inspects embedded X.509 chains, DSS Certs/OCSPs/CRLs/VRI and timestamp evidence. It never performs online OCSP/CRL/AIA requests or claims legal/eIDAS conformity.
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Ready for a run
Tool usage guide
PDF Digital Signature PAdES and Trust Chain Validator audits one PDF offline and returns a JSON report covering signatures, ByteRange data, CMS signed attributes, X.509 certificate chains, DSS evidence, revocation material, and timestamps.
Background
An auditor needs to confirm whether a standard multipage PDF contains a digital signature dictionary.
Problem
The document may be valid as a PDF but provide no embedded signature evidence.
How to use
Upload `sample-multipage.pdf` and run the offline audit.
Outcome
The tool returns a JSON audit report that explicitly identifies the PDF as unsigned.
Background
A reviewer is checking a PDF for embedded long-term validation evidence and related signature data.
Problem
The reviewer needs to determine whether DSS and PAdES-related evidence is present in the file.
How to use
Upload `pdf-password-protector-example1.pdf` and run the validator.
Outcome
The tool returns a JSON report covering detected DSS and PAdES evidence, along with relevant certificate, revocation, and timestamp findings.
Upload one PDF file.
Yes. The audit is performed offline.
No. It does not perform online OCSP, CRL, or AIA requests.
It inspects ByteRange data, CMS attributes, messageDigest values, X.509 chains, DSS evidence, revocation material, VRI entries, and timestamps.
No. The tool does not claim legal or eIDAS conformity.