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ePost Sign · The digital signature

Digitally sign documents legally

Digitally send documents for signature, have them legally signed, and automatically receive them back.

Your customers sign directly in the Swiss Post-App with a simple swipe
Your customers sign directly in the Swiss Post-App with a simple swipe
Legally valid in Switzerland and the EU: Qualified electronic signature (QES) according to ZertES and eIDAS
Legally valid in Switzerland and the EU: Qualified electronic signature (QES) according to ZertES and eIDAS

Pay-per-use without setup, without subscription

Pay-per-use without setup, without subscription
That’s how it works Try ePost Sign now
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The digital signature process

Digitally sign instead of print, scan, wait

Print, sign, scan, send back: the same game for every contract, and every media break costs time. With ePost Sign, you get digital signatures in a seamless process: send, sign electronically, automatically receive back. You upload the document in the browser, your customers sign where they receive their mail anyway (in the Swiss Post-App), and the signed document automatically comes back to you.

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ePost Sign

Business customers can send documents for signature, control the order of signers, and track every step in real time with ePost Sign. All in the browser, no installation required.

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Sign in the Swiss Post-App

What recipients receive: the document in the digital inbox of the Swiss Post-App. Check, sign with a swipe, done. This also applies to signatories who sign on behalf of a company or organization: they sign in the Swiss Post-App and choose whether to sign privately or on behalf of the organization.

Benefits at a glance

ePost Sign pays off

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Legally binding, not just digitally

Qualified electronic signature according to ZertES and eIDAS: equivalent to a handwritten signature, in Switzerland and the EU.

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Range without detours

Over a million verified Post App users sign directly in the digital inbox. No new platform, no new login.

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Signed quickly

No physical processes, no back and forth via email. The status of each document is visible in real time, and the signed original is automatically returned.

Icon Security

Safe in Switzerland

100% data storage and operation in Switzerland, FADP- and GDPR-compliant processing, audit trail that is secure for all process steps.

Sign digitally from CHF 0.95 – it pays off!

Price per signature excl. VAT, Pay-per-Use without setup and minimum purchase. This is how cost optimization and sustainability work.

Try ePost Sign now
That’s how it works

Four steps to a signed document

Upload

Drag and drop your document into your signature space in the browser. No installation, no integration.

Send

Invite signers and set the order if needed. A personal message? Optional, with a click.

Sign

Post App users receive the document directly in their digital inbox and sign with a simple swipe, privately or as a person for a business.

Received 

The legally signed document is automatically sent back to you. Track the progress in real time, and ePost Sign provides a complete audit trail.

What signature for what

3 Signature standards. A simple rule of thumb.

Not every document needs the same standard. Two questions are crucial: Is there a legal form requirement and how high is the liability risk?

  Digital Mailbox
Standard		 Digital Mail Distribution
Enterprise
Delivery Channel Digital Postbox ePost Mailbox / ERP
ScanningService ePost_Hubspot_Checkmark_ePost ePost_Hubspot_Checkmark_ePost
Distribution Service ePost_Hubspot_Checkmark_ePost
EDI Service (optional) optional
eArchiv optional optional
 eArchiv Plus
ePost_Hubspot_Checkmark_ePost		 optional
SES
Simple electronic signature
AES
Advanced electronic signature
QES
Qualified electronic signature
Security level
Base
Medium
Highest standard
Identity Check
No legal requirements
Required, procedure varies depending on provider (e.g. mobile number)
Mandatory through a recognized Trust Service Provider, online or on-site
Effect
Little evidence in court
Calculable risk, good evidence
Equal to a handwritten signature (Art. 14 para. 2bis OR), high probative value
Typical Documents
Internal approvals, protocols, supplier orders, invoice approvals
Purchase contracts, simple employment contracts, standard agreements without formal requirements
Documents with legal form requirements or high liability risk: consumer credit contracts, lease/rental contracts and their termination, audit reports, temporary work contracts
Price
0.95 CHF* per signature
1.50 CHF* per signature
2.40 CHF* per signature
Jetzt loslegen
Kostenlos starten
Beratung anfordern

* Prices exclude VAT.

Applications

Everywhere where signatures are required

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Digital Signature

For whom?

HR
Employment contracts and agreements

Procurement
Supplier and partner contracts with verified counterparties. Protection against impersonators requesting payments or contract changes.

Real Estate
Lease and rental agreements without paper and mail.

Authorities
Digitally deliver and sign permits and orders.

Finance and Insurance
Apply for and issue policies without media breaks. For retirement products and high-value transactions, verified identity protects against synthetic applicants.

Healthcare
Obtain consent in a privacy-compliant manner.

Legal
Power of attorney and contracts with audit-proof evidence.

Try ePost Sign now

We would be happy to show you in a non-binding consultation how ePost Sign digitises your signature processes, from employment contracts to powers of attorney.
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Data protection guaranteed

Secure in Switzerland

Data stays in Swiss data centres – locally and reliably protected.​

FADP-compliant

Confidentiality of correspondence and the highest data protection standards are always guaranteed.​

Encrypted​

All data is transmitted and stored in an encrypted form.

Frequently asked questions

Is the signature legally valid?

Yes. ePost Sign uses the qualified electronic signature (QES). It is equivalent to a handwritten signature under Swiss law (ZertES) and EU law (eIDAS).

Do the signatories need the Swiss Post-App?

No. Those who have the Swiss Post-App sign directly in the digital inbox. Everyone else receives an invitation by e-mail and signs after registering once in the browser.

How do the signatories identify themselves for the QES?

Via a one-time, free online identification via SwissID. Afterwards, they can sign as many documents as they want.

What documents can I send for signature?

PDF documents of any kind: contracts, quotations, powers of attorney, agreements, consents. For the few documents requiring a legal form (e.g. consumer credit contracts or temporary work contracts), the QES is even mandatory. The table above shows which standard is suitable for which purpose.

Where are the data stored?

Exclusively in Switzerland, under the highest security standards and FADP-compliant.

How do I see who has already signed?

In the signature room, you can track the status of each document in real time: pending, signed, or rejected. Every step is documented in the audit trail.

Does this protect me from fake documents?

Before the crucial gaps, yes: the identity of the signatories is verified, and any manipulation after the signature renders it invalid. This can be checked directly in the document, for example, using the Federal Validator. Organisational controls such as the ‘four-eyes principle’ do not replace a signature.

Do I pay per document or per signature?

You pay per signature, not per document.

Can a person sign on behalf of a company?

Yes. An electronic signature always belongs to a person, never to a company. That’s why the CEO or purchasing manager also signs in the Swiss Post-App and chooses whether the signature is private or on behalf of the company when signing. There is no need for a separate business account or an additional login.

Ready to collect signatures digitally?

Try ePost Sign now