MuPDF

MuPDF is a lightweight, open-source software designed for speed and efficiency. It allows you to swiftly view, annotate, and edit PDF documents with a clean, focused interface. Beyond the graphical viewer, its powerful command-line tools enable advanced batch processing, scripting, and document manipulation for power users and developers. Being free and open-source ensures transparency and community-driven improvements, making it an excellent choice for anyone seeking a no-nonsense, high-performance PDF utility without the bloat.