Contact sales:+43 50 423


We use cookies on our website to provide you with the best possible experience. By clicking "Accept All" you agree to the use of all cookies and to our privacy policy.

Necessary cookies
Performance cookies (incl. US-provider)

Legally sign documents online with Mobile-ID

Use your existing digital proof of identity and sign important documents online with the highest signature standard.


Mobile-ID is an electronic identity document that is fully supported by the government in Estonia and is gaining popularity in Lithuania. Its online use is very similar to an ID card, but no smart card reader is required. You can use it to authenticate yourself (e.g. log in to banks, websites, government offices, etc.) and sign documents (confirm transactions, sign legally binding contracts, etc.). Mobile-ID meets the highest security standards for personal identification. Electronic signature with Mobile-ID is equivalent to handwritten signature. Mobile-ID is eIDAS certified.

Frequently asked questions

Why to sign digital instead of analogue?

Is the digital signature 100% legally valid?

Is sproof sign GDPR compliant?

How can I invite people to sign?

Can signature recipients also choose other signature providers?

Do externals have to pay for signature or be sproof sign user?

Use your existing qualified signature directly in sproof sign

Digital Signature 2.0 - Qualified Signing without Borders throughout Europe

sproof has been working intensively on a newly developed interface for qualified signing throughout Europe over the past few weeks. Now the beta version has been officially transferred to the test phase with some important key accounts.

We have integrated the most important signature providers

We continuously update the QES & eID Hub with new providers and authentication methods to make it as easy as possible for you to obtain legally valid digital signatures - at no extra cost.
sproof sign is the highest-rated provider in the e-signature category on the independent evaluation platform OMR Reviews for Q3 and Q4 2023, as well as Q1 2024.