Yes, it is safe to use Penneo.
Our technical solution ensures a cryptographic certificate in connection to the signatures and we follow several recommendations from, amongst others, the Danish authorities and the EU.
Penneo also contains an archive where documents can be stored. This means that all the signing parties, the sender and any added copy recipients, can always obtain the documents they have signed.
All documents signed with Penneo will also be available in the future.
We offer documents that can be saved in the recommended and ISO-certified (ISO 19005-1: 2005) PDF/A-1 format for long-term storage of electronic documents - if the original PDF document meets the required standard.
Penneo is a service provider at NemID. Find us on the list of service providers here