Everything you need to get it signed. And prove it.
A focused signing engine with the evidence layer on every plan. Nothing is held back for an enterprise tier. Everything below is live today.
From £15/month · 30-day free trial
Every envelope leaves proof behind.
Each item below is a real file or record that you can download, inspect and re-verify.
Hash-chained audit trail
Every event is SHA-256-linked to the one before it, with a UTC timestamp and the actor. Browser actions also record IP address and user agent. Alter, remove or reorder any record and every hash after it stops matching.
Fingerprinted completion files
When signing completes, the signed PDF and the certificate are fingerprinted into the chain. They are published once and never rewritten, so a file can't be silently swapped.
Tamper-evident seal + independent timestamp
Completed PDFs get a PAdES seal and an RFC 3161 timestamp from DigiCert's public timestamp authority, which is independent of Drakon. Any PDF reader can confirm the bytes haven't changed. Seal levels and certificate trust.
Independent anchoring
The DigiCert timestamp also covers the completion event on the audit chain, so the record of when signing finished doesn't rest on our clock.
Certificate of completion
A separate PDF with its own fingerprint for every completed envelope. It covers signers, event times, verification method, both document fingerprints and a chain-verification result.
Evidence bundle
A write-once file holding every audit record, the raw timestamp tokens, the consent wording each signer accepted and the files themselves. You and each signer can download it.
Live verification
One click or one API call recomputes the whole chain from scratch and checks the timestamp.
The full technical detail is on the Security page.
Sending & signing
Multi-signer envelopes
Several recipients on one envelope, each with their own link. Roles are Signer, Witness, Approver and CC. Witness and Approver are routing labels, not legal witnessing. CC recipients are recorded on the certificate without signing.
Signing order
Route in tiers. Everyone in a tier signs in parallel, then the next tier goes. Or let everyone sign at once.
Five field types
Signature, initials, date, text and checkbox, each assigned to a signer.
Automatic field placement
Signature, date and initial labels are found and placed for you. Deterministic matching, no AI model, and nothing leaves the platform.
Reusable templates
Save a draft's PDF, roles, order and fields, then create a fresh draft with new names in seconds.
Status tracking
Draft, sent, opened, partially signed, completed. Declines are recorded in the chain too.
Evidence downloads
Original, signed PDF, certificate and evidence bundle, from the dashboard or the API.
Two minutes, any device, nothing to install.
No signer accounts
A personal link, valid for 14 days. No registration, no app, no password.
One-time code
A 6-digit code from the signer's inbox opens the document. It expires after 10 minutes, with strict attempt limits.
Sessions that don't leak
The signing session travels in a header, never a URL, so links can't leak through logs or referrers.
Versioned consent
Consent to sign electronically is explicit, and the exact wording shown is saved in the record.
Decline to sign
A decline becomes part of the evidence. Nothing is quietly deleted.
No trackers
Signing pages set no cookies, run no analytics and make no third-party requests.
Automation where it helps. AI only when you switch it on.
Field placement uses no AI model. The two AI features are off by default and enabled per organisation, because they send document text to Anthropic in the US.
Plain-English signer summary
Opt-inA short, neutral summary shown before signing. It is advisory only and never part of the evidence.
Clause extraction & risk flags
API, opt-inKey terms, dates and obligations surfaced before you send, via POST /api/documents/{id}/ai/analysis.
Reminders
One-click reminders built in.
Your account, your keys
Team roles at no extra cost
Owner, admin or member. No per-seat charge, and one shared envelope allowance.
Passwordless sign-in
A magic link by email, with optional two-step sign-in using an authenticator app.
Instant provisioning
Subscribe and you land in your dashboard, already signed in.
API keys, managed properly
Create and revoke keys in the dashboard. The plaintext is shown once and only a hash is stored.
Billing keys can't touch
A leaked API key can send documents, never change your plan or card.
Included here. Extra elsewhere.
| Capability | DrakonSign | Typical incumbents |
|---|---|---|
| Tamper-evident audit trail | Every plan, every envelope | Often enterprise-only |
| Certificate of completion | Every completed envelope | Varies by plan |
| REST API | Included on every plan | Often a separate per-invite bill |
| Pricing | Published, in pounds | “Contact sales” |
| Verification | Recompute it yourself, any time | Take the platform's word for it |
| Where it runs | Live service in London | US by default, region on request |
“Typically” is based on the public pricing and feature pages of the major e-signature providers as of July 2026.
On the roadmap
Per-organisation branding, behaviour-timed reminders, an org-wide two-step sign-in policy, a reader-trusted (Adobe AATL) sealing certificate and qualified signatures (QES). Anything on this site without a roadmap label is live today.
Try the whole engine free for a month.
Every feature above is on the Starter trial: 30 days or 3 envelopes, whichever comes first. From £15/month after.
Start your free trial