There's a free and opensource program called `diffpdf` that can compare both visually and by text. It has a GUI and works great, though it doesn't specially han

There's a free and opensource program called `diffpdf` that can compare both visually and by text. It has a GUI and works great, though it doesn't specially handle layout changes. It's included in the normal package sources in most Linux distros: apt install diffpdf pacman -S diffpdf https://gitlab.com/eang/diffpdf https://gitlab.com/eang/diffpdf