Renew or activate signature

Electronic signature activation

How to activate NEW
Certum's electronic signature?

Activate a Signature

Electronic signature renewal

Renewal of Certum's e-signature
step by step

Renew a Signature

Ensure safety
of your documents

Request a consultation

by PKI Experts


Report from
the Expert’s opinion

1 mln+

Electronic signatures

20 years

Of experience


One of the largest
Certification Authorities
in Europe

What is e-signature evaluation?


Electronic signature validation

Certum, as an expert from the area of trust services, can confirm whether a document sent by a customer was signed with a qualified electronic signature.

Expert evaluation is performed for documents supplied by the client which were signed with the use of certificates issued both in Poland and the European Union.

Who can commission an e-signature evaluation?



We offer services for both sole traders and big enterprises.



Our expert evaluations are commissioned by the representatives of administration and justice administration.

How to validate a document?

Security ensured by Experts

Expert evaluation is performed by a team of experienced Certum specialists, who follow our procedure step by step.


Send us a document or a bundle of documents for evaluation


We verify if the documents were signed with a qualified electronic signature.
The analysis may take from 2 to 14 days.


We send you both electronic (signed with an e-signature) and paper confirmation.

Verification process

As a part of electronic signature expert evaluation, Certum will perform a check of a variety of information:

Signee’s personal data

Certificate validity period

Certificate serial number

Certificate revocation date

Data integrity (we will check whether there have been some unauthorized modifications)

Certificate issuer

Confirmations, eg.: OCSP, DVCS, TS, CRL

Other PKI services, eg. timestamping

Get an evaluation


Fill an online form

Get an evaluation

Ask a Consultant