During my spare time I like to experiment with different software development projects. I'll try to share any of it here in case it might be useful.
Create visual diffs of PDF files created by LaTeX using SyncTeX.
Skillnad (english pronunciation chill-nud) is the Swedish word for difference and is a Python script for creating visual diffs of PDF files that have been created using LaTeX.
Unlike latexdiff, skillnad does not make changes to your original TeX-files to visually mark up the differences. Instead it uses the original PDF files and marks differences by overlaying color coded rectangles.
The positions of these rectangles in the PDF file are found using SyncTeX from the textual differences in the original TeX-files.