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Electronic signatures with verifiable evidence

From a loose PDF to a signed contract, today.

Upload the document, add who signs, and send it. The other person signs from their phone without creating an account, and every step is recorded with the date, time and IP address in case you ever have to show it.

  • No card to start
  • Downloadable evidence
  • €9 a month, unlimited contracts
  1. Created
  2. Prepared
  3. Sent
  4. Opened
  5. Signed
  6. Verified

From a loose PDF to a contract with evidence

Six steps. None of them makes you leave the app, and every one leaves a trace in the document’s history.

01

Create the contract

Upload your PDF. SektorSign reads the pages and has the document ready in seconds.

Document
Drop your PDF herePDF · 25 MB maxtenancy-agreement.pdf · 72%
Tenancy agreement — 88 Serrano St.
Tenancy
31 Jul 2026
Detected on upload
9 pages1.4 MB

Signing is the easy part. Proving it should be too.

A signature with no trail is worth nothing. Every SektorSign contract travels with its own evidence: who, when, from where, and on exactly which document.

  1. 01
    SHA-256 hash of the document

    Computed when the contract closes. Change a comma in the signed PDF and the hash stops matching, immediately and visibly.

  2. 02
    IP address and device for every action

    Where it was opened and signed from, along with the browser and operating system used.

  3. 03
    Server date and time

    Every event is stamped with the server’s time, not with the clock on the signer’s device.

  4. 04
    Full downloadable history

    Created, sent, opened, signed and closed: an evidence report that travels with the signed PDF.

  5. 05
    Encrypted in transit, servers in the EU

    TLS 1.3 between the browser and the server. Documents are stored in Germany and are not shared with third parties.

SS-2026-0811 · signedservice-agreement.pdfSigned
  1. 11:52:04
    Contract sent2 invitations
  2. 11:58:26
    Link opened212.170.44.91 · mobile
  3. 12:03:58
    Consent acceptedversion 2026-07-1
  4. 12:04:31
    Signature recordedMarta Ruiz
  5. 12:04:32
    Final document generatedwith evidence summary
Hash of the signed documentSHA-256 · matches

To sign, the other person needs no account.

A customer signing from her phone at a shop counter, without creating any account
The signer only sees the document and their own fields.

They get a link by email, open the document on their phone and sign. No sign-up, nothing to install, and nothing for you to explain.

  1. 01
    They open the link in the email

    No account, no password: the link is the access. The viewer loads the whole document.

  2. 02
    They work through their fields

    A counter takes them to the next required field. Nobody signs a half-filled document.

  3. 03
    They draw or type their signature

    A finger on a phone screen, or their name typed. Both are recorded the same way.

  4. 04
    They accept the consent

    A plain tick box states what gets recorded: declared identity, IP address, date, time and hash.

  5. 05
    They get their copy

    The signed document and the evidence report, immediately and by email as well.

Everything waiting on a signature, at a glance.

Total, sent, opened, signed and expired contracts, with recent activity beside them and expiry dates always in view.

Open the demo dashboard

Counts by statusSearch by contract or signerExpiry dates in viewRoles per member

Built for people who sign every week.

A solicitor in dark-framed glasses, photographed head-on in a bright office

Solicitors

Engagement letters, authorities and agreements signed without travel or scanning.

  • Engagement letter in minutes
  • Audit trail per contract
  • Downloadable evidence report
A solicitor in dark-framed glasses, photographed head-on in a bright office

Solicitors

Engagement letters, authorities and agreements signed without travel or scanning.

  • Engagement letter in minutes
  • Audit trail per contract
  • Downloadable evidence report
Two people shaking hands as they close an agreement in an office

Estate agents

Holding deposits, reservations and tenancy agreements signed on the day of the viewing.

  • Signed from the client’s phone
  • One private link per signer
  • Link expiry with a clear date
A consultant smiling beside a whiteboard during a working session

Consultants

Proposals accepted and projects started without waiting on a PDF to come back signed.

  • Proposal sent in minutes
  • You know when they open it
  • Live status for every signer
An independent professional in a grey blazer with a laptop under one arm, smiling

Freelancers

A simple plan for someone who signs three contracts a month and wants no complications.

  • €9 a month
  • No contract limit
  • Evidence included
A small team working on laptops around a wooden table

Small businesses

Teams with roles, shared contracts, and the whole history in one place.

  • Members and permissions by role
  • Separate workspaces
  • Downloadable history per contract

One clear price, no per-signature fee

No credit bundles and no surprises at the end of the month.

Starter

To try it with real contracts without putting a card in.

€0/ month
No card. No expiry.
  • 3 contracts a month
  • 2 signers per contract
  • Evidence with hash and server time
  • Signing from any device
Most chosen

Professional

For freelancers, solicitors and consultants who sign every week.

€9/ month
VAT not included · €90 a year
  • Unlimited contracts and signers
  • Downloadable evidence report
  • Complete audit trail
  • Signing from any device

Team

For practices and small companies that work on the same files.

€24/ month
VAT not included · €240 a year
  • Everything in Professional
  • Up to 10 members with roles
  • Separate workspaces
  • Priority support

Every plan includes the SHA-256 hash, server time, IP logging and a downloadable audit trail. You can change or cancel whenever you like.

What everyone asks first

Exact answers. None of them promises anything the product does not do today.

What exactly is recorded when someone signs?

The identity the signer declared, their IP address, the browser and operating system they used, the server date and time of every action (send, open and signature), and the SHA-256 hash of the document at the moment it closed. All of it goes into an evidence report that travels with the signed PDF.

What is the SHA-256 hash for?

It is the fingerprint of the document. If anyone alters the signed PDF, even by a single space, the resulting hash stops matching the recorded one. It is what lets you show that the file you have is exactly the one that was signed.

Does the person signing need an account?

No. They receive a unique link by email, open the document in their browser and sign. Nothing to install, no sign-up, no payment. Only the person sending the contract needs a SektorSign account.

Can I control the order people sign in?

Not yet. The contract goes out to every signer at once and each of them can sign whenever they like, without waiting for the others. The status always shows who has signed and who has not. Sequential signing is planned, but it is not available today.

What happens if a contract expires unsigned?

It moves to Expired and its links stop accepting signatures. The record of everything that happened is kept. To try again you create a new contract with the same document.

Where are the documents stored?

On our own server in Germany, inside the European Union, and they are not shared with third parties. The connection between your browser and the server is encrypted with TLS 1.3. You can download your documents and their evidence report whenever you want.

Is an electronic signature valid for any contract?

For the great majority of agreements between businesses and individuals, yes. There are specific acts — some requiring a notary or registration — where a particular form is required, and requirements differ by country. If your case is in doubt, take advice before you send it.

Can I use my own templates?

Not yet. Saving a contract with its fields and signers ready to reuse is not built; today each contract starts by uploading its PDF. It is one of the first things we want to add.

Your next contract could be signed today.

Upload the document, add the signers and send it. The evidence takes care of itself.

€9 a month · unlimited contracts · no per-signature fee