Contracts signed in minutes,
straight from WhatsApp.
Upload a PDF, send the link, and get it back signed — legally valid, timestamped, with a complete audit trail. Signers don't even need an account.
No credit card required · Cancel anytime
Also available on mobile
No matter the document, we've got you covered
from signup to first contract sent
steps from upload to signed
of signing events in the audit trail
accounts or apps required from signers
The old way
Forget
the paper.
Everything the paper pile was hiding — every deadline, every obligation, every signature — live in one dashboard.
CONTRACT_V7_FINAL_FINAL.PDF
PRINTED · SCANNED · LOST
cut along the dotted line
Signature
All your contracts, in one place.
From the first draft to the final signature, DottSign handles every step of the contract lifecycle.
Sign with peace of mind
Legally binding signatures backed by X.509 certificates. Real-time notifications for every signer.
SERVICE_AGREEMENT.PDF
PDFSign here
MARINA COSTA · 07/17/2026
WhatsApp Signing
Signers receive a WhatsApp message and sign entirely inside the app — no link, no browser, no download.
No app neededA looping demo of the WhatsApp signing flow. The signer receives a signature-request message and taps “Sign now”. A WhatsApp form opens full-screen inside the chat to verify their identity: they confirm their name and email, then enter the 6-digit code sent to their email. The form closes and the bot sends the contract PDF plus a message asking them to confirm their signature. The signer opens the PDF in the viewer, closes it, taps “Confirm signature”, and the chat scrolls down to two confirmations — “Document Signed” and “Document fully signed”, with the signed PDF attached.
Auto & Manual Renewal
Set renewal windows and get alerted before expiry. Renew automatically or with one click — never miss a contract deadline again.
Three steps. Zero friction.
Upload your document
Drag and drop any contract in PDF format. Key information is extracted automatically — no manual data entry.
Service_Agreement.pdf
✓ Uploaded
Add signers and send
Enter the signer's email, place signature fields on the document, and hit send. They receive a branded, mobile-friendly signing link instantly.
Signers
3 pendingAlice Johnson
Bob Martinez
Carol Lee
Track and archive
Watch signing progress in real time. Once complete, the signed PDF and full audit trail are securely stored forever.
Audit Trail
CompleteContract uploaded
Invitations sent to 3 signers
Alice Johnson signed
Bob Martinez signed
Carol Lee signed
X.509 Certificate issued · Archived securely
Understand your contracts before you sign.
Ask in plain language, get precise answers referencing the exact clause. Risk analysis, data extraction, and renewal alerts — all automatic.
AI Chat Assistant
Ask any question about your contract and get a precise answer citing the exact clause and section.
Clause Risk Analysis
Every clause is automatically scored high, medium, or low risk so you spot issues at a glance.
Smart Extraction
Key dates, parties, obligations, and deadlines extracted automatically on upload. Zero manual entry.
Renewal Alerts
Never miss an auto-renewal window. Get notified well before expiry or notice deadlines.
Built for legal teams. Trusted with your data.
Every signature is cryptographically sealed and every document encrypted at rest — your data is never used for anything you haven't agreed to.
X.509 Digital Certificates
Every signature is backed by a unique cryptographic certificate with serial number and fingerprint.
SHA-256 Integrity Hash
Document hash computed before and after signing. Any modification is immediately detectable.
IP & Geolocation Logging
Every action (open, view, sign) records the signer's IP address and location for legal compliance.
Public Verification Portal
Anyone can verify a signed PDF's authenticity at dottsign.com/verify without logging in.
Tamper-Evident Audit Log
Cryptographically chained event log covering every action from upload to archival.
Your data, your call
When it's on, document text is sent for AI analysis — categorized, summarized, searchable. Turn it off and nothing leaves our servers.
Zero Third-Party Trackers
Compliant with
A registered Data Protection Officer oversees full compliance with Brazilian and European privacy law.
Every screen designed for clarity.
1 OF 3 SIGNERS HAVE SIGNED
Sign
Review & sign the document
Signers receive a branded link. They review the contract, apply their legally-binding signature, and confirm in one click.
✓ Signed
X.509 Certificate issued · Tamper-proof
Signed
Document signed
An X.509 certificate is issued instantly. The signed PDF and full audit trail are saved and tamper-proof forever.
Drop PDF here to verify
or click to browse · PDF only
Verify
Verify any document
Upload any signed PDF to the public verification portal — no login required. Works for any DottSign document.
Document integrity: Valid
All signatures valid
Audit trail: Complete
Results
Instant verification results
Cryptographic integrity confirmed. Signer identity, timestamp, and certificate fingerprint — all visible at a glance.
Everything the competition offers. And everything they don't.
WhatsApp signing, full contract lifecycle management, and AI analysis — built in from day one, not sold as add-ons.
| Feature | DottSign | DocuSign | ZapSign | Adobe Sign |
|---|---|---|---|---|
| WhatsApp signing | ||||
| Full CLM — complete lifecycle | ||||
| AI contract analysis | ||||
| RFC 3161 timestamp | ||||
| Per-document pricing (not per user) | ||||
| Unlimited signers per document |
Start free. Scale as you grow.
No hidden fees, no per-user surprises. Upgrade only when you need higher limits.
Free
Perfect for individuals getting started.
- 5 contracts/month
- 5 AI questions per day
- PDF upload & viewer
- Digital signatures
- Email support
Starter
For freelancers and small teams.
- 50 contracts/month
- 20 AI questions per day
- Everything in Free
- PDF editor
- Contract calendar
- Manual renewal
- Unlimited signatories
Pro
For professionals who need more power.
- 150 contracts/month
- 60 AI questions per day
- Everything in Starter
- Sign via WhatsApp
- Auto-renewal
- PDF editor
- Bulk operations
Need something bigger?
SSO, custom seats, dedicated support and an SLA built around your team.
No credit card required · Cancel anytime · Compare all plans in detail
Insights for modern contract teams.
Tips, guides, and updates on contract management and e-signatures.
Got questions? We've got answers.
First contract free — signed, timestamped, auditable.
Start signing smarter today.
Create your free account and send your first contract in the next five minutes.
No credit card required · Free plan, no time limit · Cancel anytime
Also available on mobile