An easy way to generate the revised manuscript with all changes highlighted

There are many ways to perform a “diff” on two TEX files and compile the “diff”-ed TEX file to a PDF file, but the following way may be one of the most convenient ones:

Step 1: Install latexdiff. On a Windows machine, Perl has to be installed before installing latexdiff.

Step 2: Compare two TEX files by

latexdiff manuscript_before_revision.tex manuscript_after_revision.tex > diff.tex

Step 3: Compile diff.tex. A PDF file with all changes highlighted will be generated (see the example below). If working on Overleaf, don’t forget to change the “Main document” to diff.tex after uploading diff.tex to the working project.

Example: