User guide

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Manage trusted contacts
With Nitro Pro 9, you can add people to your Trusted Contacts by importing their public key certificate
manually, or you can share your public key and their public key at the same time with the Request
Contacts feature. You need to have the public key of a contact in Trusted Contacts to be able to validate
any PDF files they have digitally signed.
To add a trusted contact:
1. On the Protect tab, in the Digital IDs group, click Trusted Contacts. The Manage Trusted Contacts
dialog appears.
2. Click Add, select the certificate that was sent from a trusted colleague, and then click Open
TIP: To see details of a certificate, such as who issued it and how long the certificate is valid, select it
from the list of trusted contacts, and click View.
To export a contact ID:
1. On the Protect tab, in the Digital IDs group, click Trusted Contacts. The Manage Trusted Contacts
dialog appears.
2. Select a trusted contact, and then click Export
3. In the Save As dialog, enter a name for the certificate, and then click Save
To share public key certificates:
1. On the Protect tab, in the Digital IDs group, click Trusted Contacts. The Manage Trusted Contacts
dialog appears.
2. Select a contact to export, and then click Request. The Request Contacts dialog appears.
3. Enter your contact details
4. Select the Include my certificate in email checkbox, select a certificate to share, and then click
Next
5. Enter an email address for the recipient of your public key certificate, review the message, and then
click Send
6. An email message is composed in your default email client, and includes your public key certificate
as an attachment. Send the email.
Nitro Pro 9 - User Guide