Document custody · South Africa
Sign, seal and keep the documents your work and life run on — then watch their dates, ask them questions and share copies. With KuduDoc, anyone can check whether a sealed file is unchanged since sealing, free and without an account.
Personal is free, with no card and no expiry date.
Start here
Pick one. The page follows it: who signs, what gets sealed, which date is watched, and what you can ask it.
What KuduDoc does with a lease
More on each: Leases and move-in inspections Policies and school forms at home Tender and finance records IDs, passports and licence renewals
01Sign
The tenant signs first, then the landlord — each from a link on their own device.
Place the fields, add a witness where you need one, and KuduDoc reminds whoever is still waiting. Which documents still need ink?
02Seal
The moment the last signature lands, KuduDoc takes a SHA-256 fingerprint of the exact file, adds a certification signature and a certificate page, and anchors the time with OpenTimestamps. The kdid goes on the page.
Its public seal id, the kdid, goes on the certificate page, with a QR link any recipient can use to check the file.
03Keep
The lease goes into the 12 Oak Avenue collection, beside the deposit receipt and the inspection record.
The other records arrive by email to your own KuduDoc address or straight from your phone, and tags find them again across collections.
04Watch
KuduDoc reads the dates off your documents and suggests them; you confirm each one. Reminders go out 90, 60, 30 and 7 days before, by default — or the days you choose — and never during your quiet hours.
05Ask
Ask answers from your own documents and opens the passage it used, so you read the clause yourself before you rely on it.
You askedHow much notice must the tenant give?
Ask · from your documentsTwo calendar months, in writing, before the renewal date.Lease · clause 8
From the first field to the copy you need years later.
Vault Set up recovery first: if you lose both the Vault passphrase and the recovery key, nobody can recover what is inside.
Ask Answers point to the page they came from. Read it before you rely on an answer.
06Check · years later
A new landlord, a lender, a lawyer: whoever holds the file drops it on the public checker. It costs R0 and needs no account. A match means the file is unchanged since it was sealed.
Unchanged since sealing. The fingerprint matches the sealing record.
Changed. The bytes differ from the sealed record. One re-save is enough to change them.
No matching record. No record matches this exact fingerprint. The checker cannot tell a never-sealed file from an altered one. No match does not establish tampering.
KuduDoc
Check a sealed file
R0 to check · no account needed
Unchanged since sealing
The fingerprint matches the sealing record.
kdidkd_7Qm2xR9vL0aPz3Bn8KdY1w
Changed
The bytes differ from the sealed record. One re-save is enough to change them.
No matching record
No record matches this exact fingerprint. The checker cannot tell a never-sealed file from an altered one.
No match does not establish tampering.
Your PDF stays on this device.
Ordinary electronic signatures under ECT Act s13SHA-256 of the exact bytesOpenTimestamps anchorR0 to check, no accountA certificate Adobe trusts
Pricing
Family, Professional and Business start with a 14-day trial, no card needed. Family is one price for the household, Professional is for one person, and Business is priced per occupied seat. Compare every plan in full
For your own important documents.
FreeR0 · one account
A household of up to five people.
R79R790/ month · whole household
A person with clients. One seat.
R149R1,490/ month · one person
A company and its records. Up to 50 seats.
R199R1,990/ month · per occupied seat
Enterprise For more than 50 seats, or for invoices, service levels and custom agreements. By arrangement, with no self-service price or trial.
Talk to us about EnterpriseFor the papers life depends on
Personal is free, with no card and no expiry date.