Need someone to sign who doesn't have a IUSign account? Generate a public signing link — a unique, tokenized URL that lets anyone review and sign your document without creating an account.
From the envelope creation screen, toggle 'Enable public signing link'.
IUSign generates a unique, unguessable token (UUID v4) and a shareable URL.
Share the link via email, SMS, chat, or any channel.
Anyone with the link can open the document, review all pages, and sign.
The signer draws their signature (or uploads an image), fills required fields, and submits.
You receive a dual notification: email + dashboard alert with the signed PDF attached.
The link expires after the document is signed — it cannot be reused.
Public links stored in public_links table: { code (UUID), envelope_id, created_at, signed_at, expires_at, signer_name, signer_email }.
Token is 128-bit UUID — 2^128 possible values, unguessable, collision-resistant.
Public signers are NOT authenticated — no login required. The token IS the authentication.
ESIGN consent is still required — public signers must check the consent checkbox before signing.
Public links use 128-bit UUIDs. The link is single-use — once signed, it expires and cannot be accessed again. If the link is leaked before signing, anyone with the URL could sign.
Customer contracts (sign and return without account setup). Event waivers (mass distribution via QR code). HR onboarding forms (new hires sign before day 1).
Create your free account and send your first document in under 3 minutes.
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