n this blog post, you will learn how to change default copyright text in Magento 2 step by step. Please follow below steps to add new copyright text for your store.
1) Log in to Magento 2 using your admin account.
2) From left sidebar, click Stores, and then Settings -> Configuration.
3) In this page, expand GENERAL section in the panel on the left and choose Design.
4) Click on Footer Tab.
5) Add your new copyright text in Copyright textbox.
6) Click on “Save Config”.
7) Clear the cache.
Thats it. Now you can check new copyright text on front-side.