Eclipse PDF is a modern, lightweight PDF reader built for comfort and privacy. Unlike traditional PDF apps, Eclipse PDF focuses on your eyes and your data. Switch between Dark, Sepia, and Warm reading modes, fine-tune brightness and contrast, and enjoy a clean, distraction-free design. Eclipse PDF works entirely offline, with no ads, no sign-in, and no data collection — your documents stay private on your device. Whether you’re studying, working, or reading at night, Eclipse PDF gives you a smoother, safer, and more comfortable way to read.