PDF Diff Viewer, a side-by-side, visual highlight, sync-scroll, PDF comparer, written in Python. Open source, mostly powered by PyMuPDF and Tkinter. Optional support for git diff, for a better comparison algorithm.

This Python-based tool allows for efficient comparison of two or more PDF documents, highlighting the differences between them. It extracts and compares the words in the PDFs, ignoring whitespace differences, and highlights the changed, added, or missing words.