Signatures your legal team trusts, in an experience your customers actually finish.
VXSign sends, signs, and seals documents with PAdES digital signatures and a full audit trail — and drops straight into your own product with a few lines of code. One platform for developers, small teams, and enterprise.
PAdES/PKI signatures · RFC 3161 timestamps · eIDAS-ready · SOC 2-aligned controls
Made for the people who send, build, and defend agreements.
For developers
Ship e-signatures in an afternoon. A REST API, signed webhooks, and a drop-in embed.js signing iframe — under your own brand.
For businesses
Upload a PDF, drag your fields, and send. Templates and reminders do the chasing. Fields snap to the line automatically.
For enterprise
PAdES signatures, trusted timestamps, and a tamper-evident seal on every file, with a complete audit trail and identity verification.
From PDF to legally sealed in four steps.
Upload
Drop in any PDF, including modern files with C2PA content credentials.
Place fields
Drag signature, initial, date, and text fields. They snap to the baseline and resize to fit.
Send
Add signers, choose sequential or parallel routing, set reminders, and verify identity if you need to.
Signed & sealed
Every action is signed, timestamped, and sealed. You get the finished PDF plus a Certificate of Completion.
Everything the agreement needs, nothing it doesn’t.
Embeddable API & webhooks
Create envelopes, add signers, and place fields over REST; signed webhooks push every status change to your backend in real time.
White-label branding
Your logo, brand color, and email sender — signers see your company, not VXSign, from invitation to receipt.
Compliance & audit trail
A Certificate of Completion records each signer’s IP, user-agent, and timestamps. Tamper-evident and exportable.
Identity verification
Email OTP, SMS OTP, a pre-shared access code, or knowledge-based authentication — per signer, per envelope.
Templates & workflows
Reusable templates, sequential or parallel routing, automatic reminders, and expiration so nothing stalls.
Payment on sign
Collect a deposit, fee, or invoice through Stripe Checkout at the moment of signature — no separate link.
Every signature is cryptographically sealed — and provable.
VXSign doesn’t just capture a signature image. It wraps each completed document in a PAdES signature, stamps it with a trusted timestamp, and seals it so any later change is detectable.
Send your first sealed document today.
Start free, place your fields, and see the Certificate of Completion for yourself. Upgrade to Pro when you’re ready to send.