Freja eID can be used for electronic signing directly or through supporting independent signature services, for example those of trusted service providers.

In the case of direct signatures, the user signs text and optional binary data on their mobile device using keys and certificates issued by Freja eID. This scenario is mostly applicable for transaction text confirmation.

In cases of document signing, for example to produce advanced electronic signatures, Freja eID can easily be integrated with signature service providers.

Freja eID is integrated either through native APIs or through its Identity Provider. In this case, the user signature produced on the Freja eID mobile device approves the usage of keys and certificates, hosted by a trusted service provider, to sign one or more documents on behalf of the end user.

The user approves legally binding electronic signatures with PIN or biometry in the Freja eID app.