1. Sign in your online Right PDF account;
2. Go to "License Manager";
3. Go to "Subscription" > "Add more copies and (or) time";
4. Follow the steps: fill in the number of users and (or) time, and other information, then complete the payment;
Important: If you only want to increase the number of users, please leave the "Period" field blank; if you only want to extend subscription time, please leave the "Users" field blank, to avoid subscribing excessive users by accident.
5. When complete, you will be able to sign in more users and (or) your subscription will be extended.