Electronic signatures, the Australian way
Siggy is a privacy-respecting e-signature platform for Australian practices. Upload a PDF, place fields, send it — your clients sign with no account, and every document is sealed tamper-evidently with a certificate of completion. Need to know who you’re dealing with? Verify their identity against official government records in the same tool.
By clicking the Get started button, you agree to the Terms of Service and Privacy Policy.
How it works
From PDF to sealed in four steps
- 1
Upload
Drop in any PDF. We record a SHA-256 hash of the original on the spot.
- 2
Place fields
Click to add signature, initials, date and text fields for each recipient.
- 3
Send
Recipients get a secure link by email — no account, no app to install.
- 4
Sealed & certified
On completion we seal the PDF and issue a certificate of completion to all parties.
Built for trust
Everything a practice needs to sign with confidence
No account for signers
Clients sign from a tokenised link in seconds — the lowest-friction signing experience.
Append-only audit trail
Every action is hash-chained and tamper-evident. Any change breaks verification.
PAdES tamper-evident seal
The completed PDF is cryptographically sealed; one altered byte invalidates it.
Completion certificate
An auto-generated certificate lists consent, intention and signatures with UTC times and IPs.
Privacy by architecture
Your signers are never tracked, profiled or advertised to — the signing experience carries no analytics of any kind.
Delivered to everyone
All parties receive the sealed document and certificate by email on completion.
Verify a client’s identity against official government records — in the same tool they sign with
Siggy is an accredited Australian Identity Service Provider. Send your client a link; they consent, confirm a photo ID and take a quick selfie — checked against the issuing authority’s own records, with PEP & sanctions screening included. You get the answer and the audit trail. You never handle their documents.
- Built for TPB proof-of-identity and Tranche 2 AML/CTF customer due diligence
- About two minutes for your client, on their phone — no account needed
- From $6 per check, screening included — no subscription
Identity check
Jane Amelia Doe
Held to the Australian Privacy Principles — a standard most signing platforms skip.
Siggy is listed on the Office of the Australian Information Commissioner’s privacy register. Your clients’ data is governed by the same framework that binds banks and government departments — not exempt, and never parked in an overseas data centre. Before you pick a signing tool, ask the others where they stand.
Kingston Foreshore, Canberra — photographed by our founder
Made here
Built in Canberra. Hosted in Sydney. Accountable in Australia.
Siggy isn't a reseller of an overseas platform — it's built a few kilometres from the lake above, by people you can actually reach. Your data lives in Sydney, your invoices are in dollars, and when you reply to one of our emails, a human in Canberra reads it.
That matters more now that identity is involved: verification runs under an Australian accreditation, against Australian records, governed by Australian privacy law — end to end.
Verifiable by design
Evidence you can check, not just trust
SHA-256 hash recorded the moment a document is uploaded
100% Australian-hosted — your data never leaves
0 advertising or session-replay SDKs in the product
PAdES seal on every completed document
Why Siggy
Honest about compliance. Serious about privacy.
- Aligned with the Electronic Transactions Act 1999 (Cth): consent capture, audit trail, tamper-evident seal and a certificate.
- We document the method used — we never claim a document is “legally binding.”
- Australian-hosted, with no advertising or session-replay SDKs in the product, so you can disclose your provider with confidence.
- A fraction of the cost of the global incumbents, with transparent pricing.
The Siggy difference
ETA 1999-correct, privacy-first signing — at a price that undercuts the incumbents.
No per-seat traps. No surprise overage. No tracking of your signers. Just signed, sealed and delivered.
Read our security & compliance detail →Pricing
Simple monthly plans. Cancel anytime.
Every plan includes the tamper-evident seal, audit certificate, and Australian hosting. Save 20% when you pay annually.
Launch offer
Starter
50% off — limited launch offer
50
envelopes per month
- 1 user
- Sequential & parallel signing
- Reminders & expiry
- Folders & search
Most popular
Professional
50% off — limited launch offer
100
envelopes per month
- 5 team members
- Identity verification (from $6/check)
- SMS signing links (50¢/envelope)
- Reusable templates
- Access-code (2FA) signing
- Everything in Starter
Launch offer
Business
50% off — limited launch offer
200
envelopes per month
- 15 team members
- Custom branding
- Bulk send
- API access
- Everything in Professional
Unlimited
Unlimited
envelopes per month
- Unlimited team
- Everything included
- No limits, ever
Full plan comparison, add-on pricing and FAQs on the pricing page.