Tamper-evident, hash-chained audit trails on every document. Send, sign, and verify — without paying DocuSign prices.
Every action is SHA-256 hash-chained. Any post-signing alteration breaks the chain and is immediately detectable at verification.
The signed PDF with embedded audit page lands in your inbox the moment the signer completes. No dashboard hunting required.
Signers click a link. No account, no app, no friction. Works on phone, tablet, or desktop. Guided field-by-field signing flow.
Place signature, initials, date, and text fields exactly where you need them. Resize and reposition with full precision.
Anyone can verify a document's integrity using the session ID. Paste it at twk-sign.netlify.app/verify — no account needed.
Create an account, upload a PDF, place fields, send. First signature out the door in under two minutes.
Drag in any PDF — contracts, agreements, affidavits, disclosures.
Drag signature, initials, date, and text fields onto exactly the right spots.
Enter the signer's name and email. They receive a guided signing link instantly.
The completed document with full audit trail lands in your inbox automatically.
Every signing event — document viewed, field completed, signature drawn — is recorded with a cryptographic hash that chains to the previous event. Alter any record and the chain breaks. Verifiable by anyone, forever.
No per-user seat fees. No annual contracts. Cancel anytime.