Adobe Lightroom is a popular photo editing and management software used by professionals and hobbyists alike. It's part of the Adobe Creative Cloud suite of applications. When it comes to obtaining a license, users typically purchase a subscription to Adobe Creative Cloud, which includes access to Lightroom and other Adobe apps.
: Log in to the Adobe Accounts page and look under "Plans" or "Order History" to see your registered serial numbers.
: Adobe officially stopped selling perpetual license keys for Lightroom 6 years ago.