LaTeX version control
http://larinconadadetajo.es/?typoy=mujeres-solteras-en-virginia&2aa=e6 todonotes
http://midtiby.blogspot.com/2008/07/todonotes-version-2008-07-28.html

Good for leaving comments.
Image placeholder.
Weybridge trackchanges
http://trackchanges.sourceforge.net/index.html



Margin, footnote, inline options to display the changes.
GUI to accept changes. Python installation is required.
http://alfombrasveoveo.es/?pinka=conocer-gente-en-bremen&951=b3 changes
http://www.ctan.org/tex-archive/macros/latex/contrib/changes


Draft and final options. Easy to make final output without running another utility or scripts.
citas en internet ecuador latexdiff
http://www.pppl.gov/~hammett/comp/tex/latexdiff.html

Edit the LaTeX source file without extra tags so the source remains clean.
This Perl script generates another LaTeX file for review.
Perl installation is required.