Download page is here. "Kindle Preview Tool" is a tool to see how it will appear in Kindle devices and Kindle apps. Download and follow the instructions on the official page that is displayed when you click here please install.
For an update of the Kindle preview tool
If the Kindle preview tool has been updated you will be notified by CLIP STUDIO "CELSYS news" (top right of the screen of the bell icon) in the.Sorry to trouble you but please do an update in accordance with the guidance of the announcement.