Excellent software that works perfectly, but mind the single-license limit
Epubor Ultimate does exactly what it promises. It strips DRM seamlessly and handles modern eBook formats (like Kindle's .kfx or Adobe's .acsm) beautifully where other free tools often fail. The speed and layout retention are incredible. My only minor critique is that the standard license is strictly locked to one computer at a time, meaning you have to manually transfer the license if you switch between a desktop and a laptop. That small inconvenience aside, the software itself functions flawlessly, and customer support is fast to respond if you run into an issue.