Validator is a tool in the VEP mailbox designed to check the validity of signatures on documents. VEP mailbox registration is free. Validator is a qualified trust service for validating electronic signatures and stamps for PDF and XML content. Verification is performed on the validation portal, in VEP.si or via the API interface. After validation, you can also download a verification result report, which is signed and time-stamped. You receive it in your secure electronic mailbox.