Legally binding e-signatures
Draw, type or upload a signature on any device. Aligned with the ESIGN Act and eIDAS.
New
Automatic reminders, access codes, a Received inbox & more
Agreements drafted, signed
Agreements drafted, signed
and proven — in minutes.
VectorSign is the e-signature platform with AI built in. Describe a contract and get a draft, place fields for every signer in a couple of clicks, and send. Reminders chase signatures for you, and every signed document comes with proof anyone can verify.
No credit card required · 50 documents a month free · Signers never need an account
ESIGN & eIDAS aligned
Legally binding in the U.S. & EU
RFC 3161 timestamps
From DigiCert, on every signed PDF
SHA-256 tamper evidence
Verifiable Certificate of Completion
No account to sign
Signers just open the link
REST API & webhooks
Embed signing in your product
Why VectorSign
Everything a signature workflow needs — without the busywork
The tasks that make e-signature slow — writing the first draft, dragging fields for every signer, chasing people who forgot — are the ones VectorSign handles for you.
Draft faster
Describe the agreement in plain English and AI writes the first draft. Or start from 120+ ready-made templates, or your team's own.
Send smarter
Place initials on every page for every signer in one click. Choose the signing order, protect documents with access codes, and let automatic reminders do the chasing.
Prove everything
Every envelope gets a full audit trail, a Certificate of Completion and trusted timestamps — evidence you can check with standard tools, not just take our word for.
AI drafting
Describe the agreement. Get a draft in seconds.
No blank page and no hunting through old contracts. Tell VectorSign what you need in plain English — who it's between, the terms, the jurisdiction — and AI writes a complete, well-structured first draft you can edit right away.
- Any agreement, in any words — NDAs, consulting and contractor agreements, offer letters, leases, releases and more.
- Edit before you send — refine the draft in a built-in editor with real headings, bold text and lists that carry into the PDF.
- Blanks flagged for you — any placeholder you haven't filled in is called out before the document is added, so nothing goes out with "[Client Name]" in it.
- Straight to signature — the draft becomes a PDF in the same envelope. Add signers and send without switching tools.
AI Draft
A 6-month consulting agreement between Acme Corp and Beta LLC, $150/hour, net-30 payment, governed by California law.
Consulting Agreement
This Consulting Agreement is entered into between Acme Corp ("Client") and Beta LLC ("Consultant")…
1. Term
Six (6) months from the Effective Date…
2. Fees & Payment
$150 per hour, invoiced monthly, payable net 30…
3. Governing Law
State of California…
Draft ready in seconds
Add to envelope
Automatic field placement
Eight signers, two documents. Fields placed in a minute.
Multi-party agreements shouldn't mean dragging a hundred boxes around. VectorSign places fields for you — across every page, for every signer — and hands the cursor from one signer to the next.
- Quick place — initials for every signer on every page of every document, in one click.
- Click-to-place — click each signature line once; VectorSign moves on to the next signer automatically.
- Date signed, automatically — added under each signature and stamped by VectorSign at the moment of signing, so it can't be backdated.
- Preview as each signer — see exactly what every person will fill in before you send, and get warned if anyone is missing a signature.
Quick place
Mutual NDA + Exhibit A · 14 pagesField
Initials
Position
Bottom right
Pages
Every page · both documents
Signers
1
2
3
4
5
6
7
8
112 initials will be added
Add initials
Sent & Received
Know what needs you — and what you're waiting on
One place for everything you send and everything sent to you. Anything that needs your signature floats to the top with a Sign button, and automatic reminders nudge whoever's holding things up.
- Automatic reminders & expiry — every 2 days, 3 days or weekly, until they sign or the envelope expires.
- Categories, search & filters — file envelopes your way and find any agreement by title, signer or email.
- Everything sent to you, kept — signers can create a free account with the same email and every document they've signed is already there.
2 envelopes need your signature
Review →
Needs your signature 2
Waiting for others 4
Vendor Agreement 2026
From Riya Patel · Acme Corp
Board Consent — Series A
From Jamie Sato · Northwind
Everything included
All the features you'd expect — and a few you wouldn't
From the first draft to the final certificate, the whole signature lifecycle lives in one place.
AI drafting
"A 6-month consulting agreement, $150/hr, California" becomes an editable draft in seconds.
120+ templates
NDAs, offer letters, leases, contractor agreements and more across 10 categories — plus your team's own.
Every field you need
Signature, initials, name, text, checkbox and date signed — each required or optional.
Signing order your way
One at a time or everyone at once. Reorder signers with a click — including where you sign.
Access codes
Require a code you share by phone or text before a document opens. Repeated wrong guesses lock it.
CC recipients
Copy legal, finance or a manager — they get the completed document without needing to sign.
Multiple documents per envelope
Bundle a contract with its exhibits. Signers complete everything in one sitting.
Audit trail & certificate
Every send, view and signature is logged and sealed into a hash-chained Certificate of Completion.
Independent verification
Re-check any signed PDF for tampering, and verify its DigiCert timestamp yourself with OpenSSL.
Custom branding
Your logo and colour on the signing page and every email your team sends.
API, webhooks & embedded signing
Send envelopes from your own product and let people sign without leaving your app.
How it works
From idea to signed in four steps
1
Draft or upload
Describe it to AI, pick one of 120+ templates, or upload your own PDFs — as many as the deal needs.
2
Add people & fields
Add signers and CCs, set the order, then place fields for everyone in a couple of clicks.
3
Send & forget
Signers get a secure link — no account needed. Reminders go out automatically until they sign.
4
Download the proof
Everyone gets the signed PDFs plus a Certificate of Completion with trusted timestamps.
For teams
One workspace for your whole team — at one flat price
The Business plan covers up to 100 people for one monthly price, not per seat. Everyone shares templates and categories, and admins stay in control of who can do what.
- Org-wide visibility — owners and admins see every envelope the team sends; members see their own.
- Owner, admin & member roles — invite teammates, and deactivate access instantly when someone leaves.
- Shared templates & categories — build a document once, file envelopes the same way across the team.
- Activity log & branding — every invite, role change and rename is recorded; every email carries your logo.
Acme Corp
Business plan · 23 membersJS
Jamie Sato
Owner
RP
Riya Patel
Admin
TK
Tom Kim
Member
Riya invited Tom Kim · 2 hours ago
For developers
Put signatures inside your product
A clean REST API to create and send envelopes, embed signing in your own app, and get a signed webhook the moment an agreement completes.
- Four API calls from PDF to signature request
- Embedded signing in an iframe — no emails, no redirects
- HMAC-signed webhooks with automatic retries
- Audit trail, certificate and tamper checks over the API
send-nda.sh
API=https://api-sign.vectorviewer.com/api/v1
# Create a draft envelope…
curl -X POST $API/envelopes \
-H "X-Api-Key: $VECTORSIGN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"title": "Mutual NDA — Acme Corp",
"reminder_every_days": 3,
"webhook_url": "https://your-app.com/hooks/vectorsign",
"recipients": [{ "name": "Jamie Sato",
"email": "jamie@acme.com" }],
"documents": [ … ],
"fields": [ … ]
}'
# …then send it
curl -X POST $API/envelopes/$ID/send \
-H "X-Api-Key: $VECTORSIGN_API_KEY"
Compare
Everything you expect from e-signature — for a lot less
The essentials every serious platform has, plus the things that usually cost extra.
| VectorSign | Typical e-signature tools | |
|---|---|---|
| Legally binding e-signatures (ESIGN, eIDAS) | ✓ Included | ✓ Included |
| Templates, reminders, expiry & signing order | ✓ Included | ✓ Included |
| Access codes for signers | ✓ Every plan | Often on higher tiers |
| AI drafting from a plain-English description | ✓ Built in | Rare, or a paid add-on |
| Bulk field placement for many signers | ✓ One click | Mostly manual drag-and-drop |
| Timestamps you can verify yourself (RFC 3161 + OpenSSL) | ✓ Every document | Varies |
| Team pricing | $39/month for up to 100 users | Usually priced per user |
Pricing
Simple plans that scale with you
Free
$0/mo
50 documents/month, 2 signers
Most popular
Pro
$12/mo
199 documents/month, unlimited signers
Business
$39/mo
Up to 100 users for one flat price, custom branding
Enterprise
Custom
Custom volume, onboarding & support
FAQ
Common questions
Is an e-signature from VectorSign legally binding?
Yes. VectorSign is built around the U.S. ESIGN Act and the EU eIDAS Regulation, which recognize electronic signatures as the legal equivalent of a handwritten one. Every signature is captured with the signer's identity, timestamp and IP address, and each signed PDF carries a trusted RFC 3161 timestamp.
Is this an electronic signature or a digital signature?
The two terms are often used interchangeably, but they mean different things:
- An electronic signature (e-signature) is a person's intent to sign, captured electronically — a drawn, typed or uploaded signature, tied to the signer and backed by an audit trail. This is what the U.S. ESIGN Act and the EU eIDAS Regulation recognize as legally binding.
- A digital signature is a specific cryptographic technique: the document is signed with a certificate issued to the signer by a certificate authority. It's required for certain eIDAS "advanced" and "qualified" signatures and in some regulated industries.
VectorSign provides legally binding electronic signatures — the kind used for the vast majority of business agreements, from NDAs and offer letters to sales contracts and leases. On top of that, every completed document is protected with cryptography you can check yourself: SHA-256 hashes of each signed PDF and of its audit trail, sealed into a Certificate of Completion, plus an RFC 3161 trusted timestamp from DigiCert. If anything changes after signing, it's detectable.
VectorSign doesn't currently issue signer certificates for advanced or qualified digital signatures. If your use case requires them, talk to us.
Do my signers need a VectorSign account?
No. Signers open a secure link from their email and sign in the browser on any device. If they later create a free account with the same email, every document they've been sent is waiting in their Received inbox.
How do automatic reminders work?
When you send an envelope, choose to remind signers every 2 days, 3 days or weekly. VectorSign re-sends the signing email to whoever's turn it is until they sign or the envelope expires. You can also send a reminder by hand at any time.
Can I add extra security for sensitive documents?
Yes. Give any recipient an access code and share it with them separately, by phone or text. They'll need it before the document opens, and too many wrong attempts lock the envelope until you unlock it.
How does the audit trail work?
Every action on an envelope — sent, viewed, signed, voided — is recorded. When everyone has signed, VectorSign generates a Certificate of Completion that hash-chains the documents and their audit log, so any later tampering is detectable. You can re-verify a document at any time.
Can my whole team use one VectorSign account?
Yes — that's the Business plan: up to 100 people for one flat monthly price. The owner invites teammates, promotes admins, and can deactivate anyone instantly. Templates, categories and document usage are shared across the team.
Can I integrate VectorSign into my own product?
Yes. The VectorSign API lets you create and send envelopes, embed signing in your app, and receive signed webhooks. See the developer docs, then request API access.
What happens if I go over my monthly document limit?
You'll be prompted to upgrade before you can send a new envelope past your plan's monthly limit. Nothing already sent or signed is affected.
Is VectorSign related to VectorViewer?
Yes — VectorSign is the e-signature product from the team behind VectorViewer's document platform.
Stop chasing signatures.
Draft, send and prove your next agreement in minutes. Free to start — no credit card required.