Received a digitally signed PDF contract, invoice, or judicial document? This tool evaluates the cryptographic authenticity of the signature under eIDAS standards, identifies unauthenticated "stamp graphics", and verifies post-signing document integrity.
Ingest PDF document for cryptographic audit:
🔒 100% Client RAM • Contracts never leave your machine
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Drop signed PDF document here
Supports: PDF contracts, notarial deeds, official invoices (PAdES / PKCS#7)
⏳ Parsing cryptographic container and computing SHA-256 byte-range digest...
Cryptographic & Legal Authenticity Findings
Legal Notice & Confidentiality:
This verification is executed 100% within your client browser memory using the Web Crypto API. No pages or contract provisions are transmitted to external servers. This tool provides an independent technical verification of the cryptographic PAdES container. Under Article 25 of Regulation (EU) No 910/2014 (eIDAS), only a Qualified Electronic Signature (QES) possesses the legal equivalent of a handwritten signature.
Audit Photographs for GPS & Metadata Leaks
Digital signatures verified? Ensure uploaded photographs do not leak physical address coordinates and camera hardware serials.