kSign · Electronic signature

Electronic signature, legally compliant

kSign gets PDF documents signed electronically, legally valid and friction-free: the signer receives a link, opens the document and signs from any device. No printing, scanning or mailing.

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You upload a PDF, name who signs, kSign does the rest

You upload a PDF and name who must sign: kSign handles delivery, identity verification, signing, the certificate and tamper-proof storage — with full traceability of every step. Compliant with the eIDAS Regulation (EU 910/2014, Art. 25) and the Italian CAD (Legislative Decree 82/2005, Art. 20).

  • eIDAS compliant · EU 910/2014
  • CAD compliant · Leg. Decree 82/2005
  • Servers in Europe · GDPR

Getting a document signed shouldn’t take a whole day

Print, scan, courier — or a “graphic signature” pasted onto the PDF, with no evidential value. With kSign the document is signed from the browser and the signature has full legal value.

Without kSign

  • Print, sign, scan and mail back: days lost on every document
  • A signature pasted onto the PDF proves neither who signed nor when
  • No traceability: impossible to prove the document’s integrity

With kSign

  • The signer receives a link and signs from the browser in seconds
  • A signature with full legal value (eIDAS + CAD) and verified identity
  • Hash chain and WORM audit: tampering is detected, the proof remains

How it works, in 3 steps

From creating the request to signing, with no sign-up for the signer.

  1. Step 1

    You upload the PDF

    Guided creation: give it a title, upload the document and add the signers’ details.

  2. Step 2

    OTP verification

    The signer opens a public link and confirms their identity with a 6-digit code by email.

  3. Step 3

    Sign from the browser

    Drawn or calligraphic signature, from any device. Certificate and storage are automatic.

Real legal value, not just a graphic signature

Every event generates an SHA-256 hash that includes the previous one: the log is immutable and tampering is detected. The event trail is also stored in WORM (write-once) format, and every signature produces a PDF certificate with a QR code, signer details, the document hash and the full chain.

Documents encrypted at rest AES-256-GCM encryption: documents stay protected in storage too.

AES with the Italian eID, when you need stronger proof

Beyond the simple signature (SES), kSign can elevate a signature to an Advanced Electronic Signature by verifying the signer’s identity with the Italian Electronic Identity Card (CIE 3.0): the signer opens the link received by email and completes the check in the browser, with no app to install. The certificate includes an “Identity verification” section with the regulatory references (Art. 26 eIDAS, DPCM 22/02/2013).

The signer chooses Proceed with the simple signature, or verify with CIE for the advanced one.

In person and inside your systems

Signing where you need it: at the desk on a tablet, or integrated via API into your flows.

Sign “at the desk”

Kiosk mode for an office tablet: the customer signs on the spot, with no email, on a branded waiting screen.

API and webhooks

API keys for machine-to-machine integration with rate limits and granular permissions, webhooks to notify events to your systems, and a reusable widget embeddable in the ecosystem’s other products.

With kSign contracts get signed the same day, with the same legal value as paper — and no more queuing at the printer.

Signing, integrated across the whole ecosystem

Same login and same visual identity as every Kamzan tool. Documents come from Kondivido, signers from Kontacts, contracts from Kore CRM, and signing embeds into the kCompliance area as a reusable widget.

Everything you need to get documents signed

  • Guided requests

    Create the request in a few steps: title, PDF upload, signers’ details and options.

  • Signing without sign-up

    The signer opens a public link and signs from the browser — drawn or calligraphic, from any device.

  • OTP verification

    A 6-digit code by email before signing, to confirm the signer’s identity.

  • Hash chain

    Every event generates an SHA-256 hash that includes the previous one: an immutable, verifiable log.

  • WORM audit and certificate

    A write-once event trail and a PDF certificate with QR code, details and the full chain.

  • AES with the Italian eID

    Elevate a signature to an Advanced Electronic Signature by verifying identity with the Electronic Identity Card.

  • Reminders and statuses

    Automatic reminders to signers and clear statuses: sent, viewed, signed, declined, expired.

  • API, webhooks and quotas

    Machine-to-machine integration with granular permissions, event webhooks and per-plan quotas.

Frequently asked questions about electronic signature

Does electronic signature have legal value?

Yes. kSign complies with the eIDAS Regulation (EU 910/2014, Art. 25) and the Italian CAD (Legislative Decree 82/2005, Art. 20): the signatures collected have full evidential value, with signer identity, event traceability and an audit trail.

Do signers need a Kamzan account?

No. The signer opens a public link and signs from the browser without signing up; identity is verified with an OTP by email.

Can I sign from a phone?

Yes. kSign works from the browser on computers and mobile devices — and in person from a tablet station in kiosk mode.

What’s the difference between SES and AES?

The simple signature (SES) verifies identity with an OTP; the advanced signature (AES) verifies it with the Electronic Identity Card (CIE), for stronger evidential value. Choose the level request by request.

What makes a signature non-repudiable?

Every event generates an SHA-256 hash chained to the previous one and is saved in a WORM (write-once) audit trail: any tampering is detectable and the log stays verifiable over time.

Where are signed documents stored?

Encrypted at rest (AES-256-GCM) in your Kamzan space, on servers in Europe, always available to consult and download together with the signing certificate.