When creating the envelope, the sender determines the type of signature that will be required for each of the signature fields included in the envelope.
If a type of signature based on a qualified electronic signature certificate is requested, the signer must already be in possession of a valid version of this certificate.
Further information on the types of signatures managed by eSignAnyWhere (eSAW) can be found at the following link:
https://confluence.namirial.com/display/eSign/Electronic+Signature+Guide