A dockerized diff-pdf command.
Set up the alias as follows:
alias diff-pdfd='docker run --init -it --rm -v "${PWD}:/workdir" ghcr.io/hidakatsuya/diff-pdfd:latest'
For first time use, the diff-pdfd image will be downloaded from github.com/hidakatsuya/diff-pdfd/pkgs.
diff-pdfd file1.pdf file2.pdf
See the README of diff-pdf for more information.