I use overleaf on Windows for my research papers and thesis and it works fine. However, I received reviews from a journal, and they require me to track changes in my old and final manuscript. Inspire by this answer, I decided to use latexdiff but it isn't working. I installed Perl v5.28.1 (I think it installed correctly because Perl -v returns the version), and downloaded latexdiff from here. I extracted and copied the files to C:\Perl64\bin as described here. Now, if I attempt to run the command in CMD, I get the following error:
'latexdiff' is not recognized as an internal or external command, operable program or batch file.
I have two questions.
Why am I getting this error?
The tutorials I found on YouTube all work with MikTex, but I want to stick to overleaf. How do you use latexdiff without having to install latex in your system?