Create solution for signing PDFs
Create solution for signing PDFs

 - Sign a pdf given a certificate and existing private key.
 - Add a visible annotation with the data of the signature date, the signer and contact.

cenit-io/cenit,macarci/cenit,cenit-io/cenit,cenit-io/cenit,macarci/cenit,cenit-io/cenit,macarci/cenit