The best Note-taking alternative to MuPDF is Xournal++, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to MuPDF and four of them are Note-taking Tools so hopefully you can find a suitable replacement. Other interesting Note-taking Tool alternatives to MuPDF are Skim, SpeedyNote and modern computer flatboat.
Handwritten note-taking and PDF annotation using pen input and pressure sensitivity, shape drawing, customizable toolbar layouts, image insertion, audio recording, multi-language options, LaTeX integration, and complete export in PDF or PNG formats across all platforms.
PDF viewer for macOS supports scientific papers, annotations, highlights, bookmarks, split view, exporting notes, AppleScript, multiple annotation types, bibliography integration, full-screen, search, and compatibility with various macOS versions.
SpeedyNote is a fast, open-source note-taking application designed for stylus users who need iPad-quality annotation on budget hardware. Built with native C++ and Qt, it delivers 360Hz stylus input on hardware as modest as an Intel Celeron N4000 at 1.
modern computer flatboat is a mobile pdf viewer written in Qt and using MuPDF's libfitz.
