Certum qualified electronic signature
Sign contracts, invoices and official documents with the legal force of a handwritten signature — recognized across the European Union.
As an authorized Certum partner we issue qualified signatures (QES) on a card, token or in the cloud (Certum SimplySign). We verify your identity online by video or in person — also for people without a Polish ID.
What you get
Legal force across the EU
A qualified signature is equivalent to a handwritten one and recognized in all EU countries (eIDAS).
Card, token or cloud
Choose a physical device or the Certum SimplySign cloud signature — from your phone or computer, no card needed.
New issuance & renewal
We handle new issuance and renewals of expiring certificates — including those issued elsewhere.
Who it's for
Companies & entrepreneurs
Contracts, filings, tenders and online platforms.
Accountants & bookkeeping firms
Handling many clients and documents.
Foreigners
QES issued on a passport, full English support.
How we issue it
Enquiry
Leave your details — we'll advise on device and validity period.
Identity verification
Online video or a meeting/call-out; an ID document is enough.
Certificate issuance
We issue the Certum qualified certificate and activate it.
You sign
Apply legally binding signatures across the EU.
FAQ
How is a qualified signature different from a trusted profile?
Can I have the signature on my phone?
How long is the certificate valid?
Can you issue it to a foreigner without a Polish ID?
Order a qualified signature
Message or call us — we'll prepare an individual quote based on device and validity period.