The PDF Viewer in Microsoft Edge is migrating to WebUI2, enhancing responsiveness and introducing a series of subtle visual upgrades aimed at improving overall usability and utility. This migration ensures UI coherence with the rest of the browser while maintaining the same user experience.
The update focuses on improving underlying performance, consistency in design elements, and a smoother interaction without altering any existing workflows for users.
GA date: OctoberAugust CY2026