This is a security provider that encrypts & attach digital signatures to users emails & files before going online, to prevent personal data from misuse.
Moreover, You may install a key manager for OpenPGP, X.509, and common crypto dialogs (Kleopatra), GNU privacy assistance (GPA), an Outlook plugin (GpgOL), shell extension (GpgEX), and a Claws mail-user agent (Claws-Mail).
In addition to that, The interface of the utility is represented by a standard window with a well-defined layout. Gpg4win supports a wide range of certificate types, including ASC, CER, CERT, DER, and PEM.