You can submit those services online through HERMES but also you can visit the KEP of your choice to receive the respective certificate issued by the service.
You can process those services through HERMES and complete them on-line. The product of the service (attestation / certificate) is saved in your electronic locker for a specified time period where it is accessible by you.
In order to process an electronic service by HERMES, you must visit any KEP, to check the information required.
Finally, you can be informed and use the printed document validation control service available for the public and verifying the validity of the documents produced by HERMES.