# Request someone's certificate

Certificates you receive from others are kept in a list of trusted identities, which you can use to validate signatures.

1. Choose Document > Manage Trusted Identities, and click Request Contact.
2. Type your contact information.
3. Select Email Request or Save Request As A File.
4. Follow on-screen instructions to send the email or save the file.

You can also send your certificate at the same time by selecting Include My Certificates when adding your contact information.

Related Information

- About digital signatures