Using latexdiff I have the problem, that by adding new \section, I get the following error by trying to run pdflatex.

! Argument of \UL@word has an extra }.
<inserted text> 
l.69 \subsection{\DIFadd{Some Text}}

Here you can see the redefined \section command...

{1}     % Structure level
{0mm}   % Indention
{2ex plus 1ex minus 1ex}            % Pre-Margin
{0.5ex plus 0.5ex minus 0.5ex}      % Post-Margin
{\chapterheadfont\Large\bfseries}   % Style
{2}     % Structure level
{0mm}   % Indention
{1.5ex plus 1ex minus 0.5ex}        % Pre-Margin
{0.3ex plus 0.3ex minus 0.3ex}      % Post-Margin
{\chapterheadfont\large\bfseries}   % Style

How can I fix the problem? It would work for me also to ignore the changed section names.

  • 1
    Welcome to TeX.sx! We'd like to keep answers separate from questions, so you should write a separate answer instead of editing your answer into the question. Self-answers are perfectly admissible, and a well-written answer may earn you additional reputation.
    – lockstep
    Dec 18, 2012 at 18:28

5 Answers 5


(OPs answer, moved from the question.)

I thought it would be more complex, but I found a solution. Using --exclude-textcmd allows the ignoring of tags. It works now.

  • 4
    Where exactly did you put this text?
    – Veridian
    Feb 19, 2016 at 20:48
  • What does now mean? Version 1.1.1?
    – math
    Feb 23, 2016 at 13:41
  • 1
    @sphere: it is put as command line argument to latexdiff.
    – math
    Feb 23, 2016 at 13:41
  • would it also work with git latexdiff? Jan 15, 2020 at 19:26
  • 1
    @Veridian this should be added as an option of latexdiff command
    – simona
    Aug 18, 2020 at 23:14

It's difficult without an MWE, but I would assume that the difficulty is with hyperref, which tries to include underlined/crossed out text as hyperlink given that it is part of a chapter.

The solution is to use texorpdfstring, which tells hyperref to use plain text for the hyperlinks. I can't remember the exact commands that latexdiff definds, but try something like that:

% Redefine these commands for chapter/sections and change below

\RequirePackage[normalem]{ulem}% DIF PREAMBLE
\RequirePackage{color}\definecolor{RED}{rgb}{1,0,0}\definecolor{BLUE}{rgb}{0,0,1}%DIF PREAMBLE
\providecommand{\DIFadd}[1]{{\protect\textcolor{blue}{\hwave{#1}}}}% DIF PREAMBLE
\providecommand{\DIFdel}[1]{{\protect\textcolor{red}{\hsout{#1}}}}% DIF PREAMBLE
  • I've tried your solution, but it doesn't work. I get the same errors like before.
    – aphex
    Dec 18, 2012 at 22:51
  • 1
    @aphex Then please provide an MWE
    – Jörg
    Dec 19, 2012 at 9:16
  • @Jörg I seem to be suffering from the same issue. In my document i have a section "Conclusions". When i set this as a comment my latexdiff file compiles as normal. However if i have this as a section, the same error appears: Argument of \UL@word has an extra }. <inserted text> \par l.1411 \DIFaddbegin \section{\DIFadd{Conclusion}}
    – wierts
    Nov 22, 2013 at 14:28

I had a problem with

\section{\DIFdelbegin \DIFdel{Conclusion}\DIFdelend \DIFaddbegin \DIFadd{Conclusions}\DIFaddend }

and Jörg's solution did not work for me. What worked was a manual substitution:

\section{\texorpdfstring{\DIFdelbegin \DIFdel{Conclusion}\DIFdelend \DIFaddbegin \DIFadd{Conclusions}\DIFaddend }{Conclusions}}

I had the same problem on a very large document, and based on Jörg suggestion, I just removed the call to hyperref package (and \hypersetup ) in the difference tex file and it compiled fine. Just a fast workaround.

  • Disagree. This answer worked better than the others for me. Sep 17, 2016 at 7:07
  • If autoref is used from hyperref package, then commenting out hyperref will disable autoref. So, commenting out hyperref is not the best option.
    – Chee
    Feb 11, 2018 at 17:41

I have something like this: \subsection{\DIFadd{Experimental results added}}, then it got error with MiKTeX.

I change it to this:

\section*{\DIFadd{Experimental results added}}

or \subsection*{\DIFadd{Experimental results added}}, then it's ok but no section numbers.

So I change it again:

\section[]{\DIFadd{Experimental results added}}

or \subsection[]{\DIFadd{Experimental results added}}.

Hope this could solve your problem (not perfect: section number color is still black).

  • I added some comments on how to Joeg's solution but they were deleted by Peer Review. Anyway, there seems to have been some misunderstanding on how to use Joeg's solution. So, I am writing on this again. The key to use his solution is to comment out the following two default commands generated by latexdiff: \providecommand{\DIFadd}[1]{{\protect\color{blue}\uwave{#1}}} %DIF PREAMBLE; \providecommand{\DIFdel}[1]{{\protect\color{red}\sout{#1}}} %DIF PREAMBLE
    – Chee
    Feb 11, 2018 at 18:04

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