evince
Evince is a lightweight document viewer for the GNOME desktop environment. It provides a single, consistent interface for viewing multiple document formats, aiming to replace multiple format-specific viewers. It is free and open-source software developed by the GNOME project.
Supported formats include PDF, PostScript, DjVu, TIFF, XPS, and DVI. Rendering is powered by the Poppler library
User interface features include a tabbed document view, a side panel that can show thumbnails, outlines, or
Under the hood, Evince is designed to be lightweight and accessible, focusing on simplicity and performance.
History and status: Evince was created to provide a unified document viewer for GNOME as a replacement