Starting from version v38.0.0 onwards, all open source installations of CKEditor 5 display a small “Powered by CKEditor” logo in the bottom-right corner of the editing area. The label links directly to the CKEditor website. The new branding approach is designed to make sure the entire community knows who is powering and modernizing their rich text editor.
To remove the logo, you need to obtain a commercial license and a a license key for CKEditor. Contact us for more details.
Refer to the documentation for more details.