General - How can I validate the signature in the Acknowledgement documents?
The acknowledgement of receipt is signed with an electronic certificate guaranteeing the date and time of the signature as well as the integrity of this document. The certificate used to sign this document is held by the European Commission and can be verified by the corresponding public key.
The first step to validate the signature is to install the certificate in Acrobat.
(This step is only necessary once per machine)