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The ACM provides a LaTeX template called sig-alternate.cls (webpage, class file). The current version is 2.4 released in April, 2009.

I would like to submit a paper for review using this class file. Unfortunately, the class file reserves some space at the bottom of the first page in the first column for a copyright notice. This copyright notice is required for the camera ready version of the paper, but not for the initial paper submission. How can I remove this copyright notice and reclaim this space?

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A non-answer, for the sake of completeness: The standard way to remove the copyright notice is to use the \toappearbox{...} command. This allows you to replace the copyright notice with a boxed text. This does not save any space, but usually this is a good feature: you can have identical layouts in the camera-ready version and in your own version. –  Jukka Suomela Jun 24 '11 at 18:32
    
Hmm, when I add \toappearbox{something} that does not change anything... What am I missing? –  fgysin Dec 14 '11 at 10:17
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2 Answers

up vote 15 down vote accepted

Use the etoolbox package and its \patchcmd macro to selectively change sig-alternate' s definition of \maketitle, i.e. remove the \@copyrightspace macro (which is responsible for the copyright space).

\documentclass{sig-alternate}

\usepackage[english]{babel}
\usepackage{blindtext}

\usepackage{etoolbox}
\makeatletter
\patchcmd{\maketitle}{\@copyrightspace}{}{}{}
\makeatother

\begin{document}

\author{lockstep}
\title{How to remove the copyright space}
\maketitle

\blinddocument

\end{document}

(The blindtext package is only used to add some dummy text to the example.)

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This solution works good. Thanks. –  Nathan Farrington Jun 24 '11 at 17:37
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The accepted answer somehow doesn't work for me, but I found another solution from this link

Simply add the following lines before \begin{document}:

\makeatletter
\def\@copyrightspace{\relax}
\makeatother
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