No internet needed · the optional AI does
Certified digital signature
Sign with your digital certificate (.p12 or .pfx). The document is sealed: if anyone modifies it afterwards, the signature is marked invalid in Acrobat and in any validator.
No internet needed to process
Everything happens on your device and works without internet. Only one option leaves it, and only if you choose it and authorize it:
The timestamp sends only the cryptographic digest of the signature (32 bytes) to an external timestamp authority.
Your certificate and its password are used right here — they are not uploaded to any server.
What it’s for: Sign with your digital certificate, with legal validity.