If you cancel your subscription it stops the auto-billing for your renewal.

This means you will not be notified or billed for your renewal as you are signaling that you do not wish to renew it. When you purchase you buy a 12-month term license that enables you to use DraftSight and activate each license key purchased on at most 2 machines concurrently.

Each license can be transferred from one machine to another by first deactivating and then reactivating as long as the license is valid.