Launching soonSign anything. Prove everything.
ZJDI-AI e-sign sends, signs, tracks and verifies your documents in minutes, with face sign-in, signers verified by SMS and a tamper-evident record of every step. Built in Harare for the way Zimbabwean organisations really work.
Launching soon. Early-access organisations are onboarded first.
- Face sign-in
- QR-verifiable PDFs
- Data separated per organisation
How it works
From upload to proof in five steps
01
Upload anything
PDF, Word, Excel, PowerPoint, CSV, images and more. Files are converted to a faithful PDF, and one request can carry several documents.
02
Place fields, set the order
Click to place signatures, set who signs first, add approvers, and set reminders and an expiry date.
03
Send
Colleagues sign in the app. Outside signers get a secure link and confirm who they are with a code sent by SMS.
04
Sign anywhere
One scrolling view on any phone or computer. Sign, decline or delegate, with face sign-in for your own team.
05
Prove it, forever
A certificate lists every step with times and addresses, and a QR code on each page opens a public verification page.
Features
Everything a signature needs, nothing it doesn’t
Built for real organisations: many signers, strict approvals, outside parties, auditors and phones on mobile data.
Any file, many documents
Word, Excel, PowerPoint, OpenDocument, CSV, RTF, text and images become PDFs that keep their layout. Send a main document with schedules and attachments, each with its own role.
- DOCX
- XLSX
- PPTX
- ODT
- CSV
- RTF
- TXT
- PNG
- JPG
Face sign-in
Sign in by looking at the camera, in about two seconds. Each face is compared only with its own account’s encrypted template, never with anyone else’s.
Signers verified by SMS
People outside your organisation confirm their identity with a one-time code before they can sign.
Signing order & approvals
Sequential or parallel signing, approvers, delegation, automatic reminders and expiry dates.
Tamper-evident audit trail
Every view, signature and decision is recorded in order, with time and address, in an append-only log.
Your brand everywhere
Your logo and colour across the app, the emails and the cover of every signed PDF. Light and dark modes.
Run your own organisation
Users, roles and permissions, seats, usage meters, two-step verification for everyone, and your own help desk.
Buy the way you want
Monthly, quarterly or annual plans. Build your own quotation with exactly the users and add-ons you need, and pay online.
Security & compliance
Trust is the product. We engineered it in.
ZJDI builds security systems for a living. e-sign was designed by the same engineers, to the same standard.
Separated twice
Each organisation’s data is isolated in the application and again by the database itself (row-level security).
Encrypted where it matters
Face templates and stored secrets are encrypted. Keys and tokens are kept only as hashes.
No open file links
Documents are only ever served through short-lived signed links after an access check.
ZJDI-AI Threat Protection
Every uploaded file is checked for malware and its type verified before anyone can open it.
Two-step verification
Authenticator apps and backup codes, which an organisation can require for everyone.
Built for local law
Designed around Zimbabwe’s Cyber and Data Protection Act: data exports, deletion, legal holds and a breach register.
Genuine document
Verified by ZJDI-AI e-sign
- Status
- Completed
- Signers
- 3 of 3
- Documents
- Main + 2 schedules
- Audit events
- Recorded in order

Sample verification page
Verification
Every signed PDF can prove itself
A cover certificate lists every step with times and addresses. A QR code and the ZJDI-AI e-sign stamp sit on each page, so a bank, a court or a client can check the document in seconds, without an account.
Who it’s for
Built for every team that still prints to sign
HR & people
Offer letters, employment contracts, policy acknowledgements, leave and exit forms.
Finance & procurement
Supplier contracts, purchase approvals, payment authorisations, NDAs.
Banking & microfinance
Loan agreements, account-opening forms, mandates and customer consents.
Property & legal
Leases, sale agreements, service contracts and powers of attorney where permitted.
Healthcare
Consent forms, vendor agreements, staff contracts and internal approvals.
Schools & public bodies
Approvals, memos, enrolment and consent forms, signed without the paper trail.
FAQ
ZJDI-AI e-sign, answered
Is an electronic signature legally binding?
For most business agreements, yes. Each signature comes with a full audit trail and a certificate that serve as evidence of who signed, when and from where. A few documents may still need ink by law, so check with your legal adviser for those.
Do the people I send documents to need an account?
No. Outside signers receive a secure link and confirm who they are with a one-time code sent to their phone by SMS, then sign in the browser.
Which files can I send?
PDF, Word, Excel, PowerPoint, OpenDocument, CSV, RTF, text and images. They are converted to a PDF that keeps the layout, and the original is kept too. One request can include several documents.
How can someone check that a signed document is genuine?
Every signed PDF carries a QR code. Scanning it, or opening the verification link, shows the document’s record on a public verification page.
What happens to face data?
Face sign-in is optional and needs consent. Only an encrypted template is stored, it is compared with that one account only, and face images are never stored.
Can we use our own branding?
Yes. Upload your logo and choose a colour: the app, the emails and the cover of every signed PDF carry them straight away.
How do we pay?
Choose a plan monthly, quarterly or annually, or build your own quotation with the users and add-ons you need, then pay online. There is a free trial with no card needed.

Retire the printer. Sign this week.
Bring your contracts, letters and approvals online, with proof that holds up. Launching soon. Early-access organisations are onboarded first.
Launching soon. Early-access organisations are onboarded first.