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Legally sign documents online with certSIGN

Digitally sign contracts, business documents and other important papers directly in sproof sign with an existing certSIGN token.

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Since 2006, certSIGN has become the most important Romanian provider of trust services and a pioneer in the Romanian market by introducing paperless technologies in business processes.

Tokenised e-signatures allow you to sign any document quickly and with legal effect, using a secure cryptographic signature creation device (token) and a unique PIN code under your sole control. And because any change to an electronically signed document is detectable, fraud attempts can be almost completely eliminated, unlike a handwritten signature on paper.

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.

The digital signature 2.0 - Qualified signing across Europe without borders

In recent weeks, sproof has been working intensively on a newly developed interface for qualified signing throughout Europe. The beta version has now officially entered the test phase with some important key accounts.

We have integrated the most important signature providers

We continuously update the 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.
Why sproof sign?Highest security and compliance paired with an "all-in-one" functionality make sproof sign the top European alternative on the e-signature platform market. 100% developed and hosted in Europe.
sproof sign is currently the highest-rated e-signature provider on the independent review platform OMR Reviews and has also been certified by CRIF GmbH with the 'ESG SCORE: A' for sustainability.