The ultimate tool to sign digitally.
Sign documents digitally with DeepSign and speed up any agreement.
Trusted by more and more companies in Switzerland
What is a digital signature?

A digital signature is a type of electronic signature (or eSignature) that meets certain additional security criteria defined by law, such as the presence of a digital certificate and the requirement of secure identification of the signer.
With DeepSign you can sign documents digitally with three types of electronic signatures: simple electronic signatures (SES), advanced electronic signatures (AES) and qualified electronic signatures (QES), the latter of which are legally equivalent to handwritten signatures.
Verify signers’ identities for free
Get documents signed legally
How DeepSign digital signatures work.
Upload
Whether it’s a quote, a work contract or a purchase contract, upload your document to DeepSign and share with any necessary co-signers.
Verify
Verify your identity and those of your co-signers remotely in 3 easy steps with our DeepID mobile app. DeepID works with both passports and national IDs, and it’s free to use.
If you already use Mobile ID third party app for digital identity you can keep on using it with DeepSign.
Sign
Monitor the signature progress in real-time and send your co-signers automatic reminders. Get your document signed with the eSignature type you requested (simple, advanced or qualified electronic signature).
Your digital signature in accordance with the law.
With DeepSign you can create three types of electronic signatures recognised by international law: simple electronic signatures (SES), advanced electronic signatures (AES) and qualified electronic signatures (QES).
Get the facts.
Learn more about our legal, security and identification specifications.
Meet both Swiss and EU legal requirements.
Digital signing with DeepSign is legally valid and compliant with both Swiss and EU regulations, so you and your business partners can safely sign regardless of where your company is based.
ZertES
The Federal Act on Electronic Signatures defines the requirements for digital certificates and the obligations of service providers to “promote a wide range of secure certification services” in Switzerland.
eIDAS
The Electronic Identification, Authentication and Trust Services regulation “establishes the framework to ensure that electronic interactions between businesses are safer and more efficient” in the EU.