How to get a qualified electronic signature?

What is a qualified electronic signature?

A qualified electronic signature is the highest level of electronic signature in the European Union, regulated by the eIDAS Regulation. It is legally equivalent to a handwritten signature — meaning documents signed electronically carry the same legal weight as those signed by hand.

A qualified signature is required, among other things, for:

• issuing e-invoices in the KSeF system,
• submitting documents to ZUS (social insurance) and tax offices,
• signing electronic contracts,
• participating in e-tenders and public procurement,
• correspondence with courts and public authorities.

What formats are available?

Certum offers three forms of qualified signature — we choose together based on your needs:

How does the process work?

Below is a step-by-step description of the entire process when you do it with our help.

1. 1

   Contact and consultation

   Call or write to us — tell us what you need the signature for. Based on the conversation, we recommend the solution that best fits your needs and way of working. There is no single ideal format for everyone — that's why we start with a conversation, not an offer.

2. 2

   Choosing the right solution

   Together we decide whether a cryptographic card, USB token, or SimplySign cloud signature is the better choice. We explain the differences, advantages, and limitations of each format — so you can make an informed decision.

3. 3

   Booking the appointment

   We book a time that is convenient for you. You have two options:

   • In-person meeting — we come to you (Kraków and surroundings within 50 km) or meet at an agreed location.
   • Video verification — the entire process is carried out remotely, via a short video call.
4. 4

   Application and identity verification

   At the appointment, we fill in the certificate application together. We also carry out the mandatory identity verification — a legal requirement under the eIDAS Regulation. You need a valid national ID card or passport for verification.

5. 5

   Software installation and activation

   We install the required Certum software on your computer and activate the service. We handle everything on the technical side — you don't need to do anything yourself.

6. 6

   Training

   After activation, we show you how to use the signature on a day-to-day basis — how to sign PDF files, Word documents, how to manage the certificate, and what to do when renewal is approaching. By the end of the appointment, you'll know exactly how to use it.

7. 7

   Done — your signature is active

   The qualified signature is fully active by the end of the appointment. You don't wait for any parcel or additional steps. You can start signing documents the same day.

What to bring to the appointment?

Preparation is very straightforward. You need:

• a valid national ID card or passport,
• an email address (for activating your Certum account),
• a computer or laptop (if you want to install the software on the spot).

If the signature is to be issued for a company or institution — contact us in advance and we will let you know what additional documents are required.