After uploading your document, under the recipient tab on the right side, you can add recipients to the document.
See the guide below on how to add a recipient to a send-out.
How to add new recipients to a document
Enter the recipient's name, email, or company in the recipient field
Fill in the recipient detail and click save
The recipient will be added to your Contacts so you can easily add them to new documents in the feature.
How to add an existing contact to a document
Enter the name of the contact
Scroll down to find the contact and click on it