There are a few packages: http://www.tex.ac.uk/tex-archive/macros/latex/contrib/changes/ http://www.ctan.org/tex-archive/macros/latex/contrib/changebar/ Have a look at the nice todonotes as well, which might be used for this purpose as well. http://www.tex.ac.uk/CTAN/macros/latex/contrib/todonotes/ Uwe