pdf-difference
There are 4 repositories under pdf-difference topic.
serhack/pdf-diff
A tool for visualizing differences between two pdf files.
akseidel/PDF-DIFFERENCE
Show the difference between two PDF files, like when comparing two PDF construction drawings. A front end to ImageMagick and GhostScript processes that shows the difference between two PDF files.
KOUISAmine/Compare-two-PDF-files
Comparing PDFs can be useful in various scenarios, such as document version control, content verification, and collaboration.
zavierferodova/py-cspdf
Python Check Similarity PDF