After designing your event's badge, you can download a badge on an individual guest's badge from the check-in feature. Here is the guide for you to print your event's badge.
Note: If you haven't set up the badge template, you can customize the event badge template first here Customize Event Badge Template.
Go to https://onsiteapp.eventnook.com and Login
Go to My Events ›› Manage Event ›› Check-in
Click the View button of a guest
There is the Print button to download the badge in PDF or directly print to a printer