Signing order
Signers in order or at the same time; approvers and form fillers; copies to anyone who needs one.
Kairos-K Sign
Send, sign and keep documents - simply and securely
Upload a PDF or Word file, add the people who sign, place the fields and send. Everyone signs from their phone or computer; you get one sealed PDF with a certificate of completion.
Email one-time code for every signer
Sealed PDF with audit trail
English and Ukrainian
Fields where they belong
Drag signature, initials, name, date, text, checkbox and more onto the page - with a mouse or a finger.
Templates
Save an envelope as a template with roles such as Client and Director, and send it again in a minute.
Countersigning on autopilot
A director can authorise their saved signature to be applied to envelopes from approved templates.
Evidence that holds
Each step is in a hash-chained audit trail; the final PDF carries a certificate and a seal that shows any change.
For teams and franchises
Roles for staff and agents, your own logo and colours, an API and webhooks for your systems.
How it works
- Add recipients and filesUpload documents and add who signs, approves or gets a copy.
- Prepare the documentPlace the fields for each person.
- SendEach person gets a secure link and confirms their email with a one-time code.
- Keep the sealed PDFEveryone receives the completed document with its certificate.
Are e-signatures valid?
For most commercial documents in the UK, yes. Some documents, such as wills, need other formalities.
Kairos-K Sign is provided by KAIROS-K LTD, a company registered in England and Wales.