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© 2026 altSign · Legally binding electronic signatures

The contract workspace your legal and sales teams can share.

altSign keeps the agreement, the people on it, and the signature trail in one place, so nothing is reconstructed from an inbox later.

AI that reads your contractsTerms, parties and key dates extracted the moment you upload a PDF.
Signing that gets finishedGuided fields, reminders and identity checks that suit the risk.
Evidence you can rely onEvery sealed PDF carries a tamper-evident audit trail.

ESIGN and eIDAS aligned PAdES-sealed PDFs REST API and webhooks