Assuming that you already installed OpenPGP and Kleopatra on your computer then all you have to do is right-click the folder or file then select sign and encrypt.

Figure 1

Selecting File & Navigating Options

Figure 2

Encrypting File

Note. You can then select the option you need on the following options.

Sign as: If you want to sign with your private key.

Encrypt for me: If you are encrypting the file for yourself then you have to select your own credentials.

Encrypt for others: The imported credential for that entity where you want to send the encrypted data(file).

Encrypt with password: This will let you put a password to the signed file.

Figure 3

Validating Encrption Process

Note. Make sure that the encryption is succeeded.

Figure 4

Sample Output

Note. This encrypted file is the one you should send.