FAQ
Yes. Under the U.S. ESIGN Act (2000) and UETA, electronic signatures collected through SignFastAi are legally binding across all 50 states for the vast majority of business and personal documents.
No. They receive a secure link by email, open it in any browser, and sign — no download, no sign-up, no password.
SignFastAi locks the document and attaches an audit trail — timestamp, IP address, and a unique verification hash — then emails the final signed PDF to everyone involved.
Yes. Documents are encrypted in transit and at rest, and every signing link is single-use and expires automatically.
Yes — the Free plan lets you send documents every month at no cost, no credit card required.
Yes. Add as many signers as you need, and choose whether they sign in a set order or all at once — each signer is only notified once it's their turn.
SignFastAi currently accepts PDF documents. If your file is in another format, convert it to PDF before uploading.
Yes. You can void any request that hasn't been completed yet, which immediately disables the signing link for every remaining signer.