This article details how to import PGP keys using Encryption Desktop. You can import PGP public keys and PKCS-12 X.509 certificates (a digital certificate format that most web browsers use) to your PGP Keys keyring. You can also import Privacy Enhanced Mail (PEM) format X.509 certificates from your browser by copying and pasting into your public keyring.
Here are some methods to import a PGP public key and add it to your keyring:
Double-clicking the file on your system. If Encryption Desktop recognizes the file format, it opens and asks if you want to import the key(s) in the file.
Choosing to import the key file in Encryption Desktop.
Dragging the file containing the public key onto the PGP Keys window.
Note: After importing keys to Encryption Desktop, you may need to Sign or change the Trust level of the key.