[Tex/LaTex] Outlined characters in Beamer

beamerformattingtext-decorations

Following Outlined characters, you can make selectable outlined text using the contour package. For example, the following writes "Text text text contour text", with "contour" in green with a red outline. It compiles and displays as expected (using pdflatex and lualatex):

\documentclass[12pt]{article}
\usepackage[outline]{contour}
\begin{document}
Text text text \contour{red}{\textcolor{green}{contour}} text.
\end{document}

However, when I try to do the same in a Beamer presentation—

\documentclass{beamer}
\usepackage[outline]{contour}
\begin{document}
\begin{frame}{Example}
Text text text \contour{red}{\textcolor{green}{contour}} text.
\end{frame}
\end{document}

—it fails to compile, with the error

! Use of \\@contour doesn't match its definition.
\beamer@ifnextcharospec #1#2->\def \reserved@a {
                                                #1}\def \reserved@b {#2}\fut...
l.14 \end{frame}

?

How can I use the outline effect in a Beamer presentation?

Best Answer

Prolog

Apparently, beamer redefines \textcolor in a way that makes it fragile.

If you \usepackage{beamerarticle} in your article MWE, you experience the same problems as with beamer.

Long answer

What is the difference between Fragile and Robust commands?

Short answer

Use

\contour{<color>}{\protect\textcolor{<color>}{<text>}} or
\textcolor{<color>}{\contour{<color>}{<text>}}.

Code

\documentclass{beamer}
\usepackage[outline]{contour}
\begin{document}
\begin{frame}{Example}
Text text text \contour{red}{\protect\textcolor{green}{contour}} text. \\
Text text text \textcolor{green}{\contour{red}{contour}} text.
\end{frame}
\end{document}

Output

Related Solutions

[Tex/LaTex] Two figures side by side with text wrapping

You have to carefully adjust the dimensions of your image and the number of lines the wrap figure will extend ( for example [10] in \begin{wrapfigure}[10]{r}{5.5cm}).

An example:

\documentclass{article}
\usepackage{graphicx,wrapfig,lipsum}
%------------------------------------------
\begin{document}
This is where the table goes with text wrapping around it. You may
embed tabular environment inside wraptable environment and customize as you like.
%------------------------------------------
\begin{wrapfigure}[10]{r}{5.5cm}
\rule{5.5cm}{7.1cm}
\caption{A wrapped figure}\label{wrap-fig:1}
\end{wrapfigure}
%------------------------------------------
This is where the table goes with text wrapping around it. You may
embed tabular environment inside wraptable environment and customize as you like. This is where the table goes with text wrapping around it. You may
embed tabular environment inside wraptable environment and customize as you like. This is where the table goes with text wrapping around it. 
%
\begin{figure}[h]
\begin{minipage}{6cm}
\centering
\rule{\textwidth}{3cm}
\caption{my figure}\label{fig:2}
\end{minipage}%
\end{figure}%

\lipsum[2-3]

Figure~\ref{wrap-fig:1} is a wrapped figure.
%------------------------------------------
\end{document}

enter image description here

[Tex/LaTex] Thumbnails of other frames in beamer

You can test with the macro \IfFileExist{filename}{then-do-this}{else-do-this} whether a file filename exists or not and respond accordingly. If the file filename exists, the then-do-this branch is executed, otherwise the else-do-this branch. Replace then-do-this and else-do-this with your own code.

In your new given MWE I would delete thr part to copy the pdf file and change the part to build the thumbnail slide to (supposing you have 4 thumbnails to include):

\IfFileExists{\jobname-copy.pdf}{%
\begin{frame}
  \foreach \i in {1,...,4} {
    \fbox{\includegraphics[width=0.2\linewidth, page=\i] {\jobname-copy.pdf}}
  }
\end{frame}
}{\typeout{No Thumbnails included}}

Now you only need to do (you can put this into a batch file):

pdflatex myslides.tex
pdflatex myslides.tex
cp myslides.pdf myslides-copy.pdf
pdflatex myslides.tex

The thumbnail were only included if the file myslides-copy.pdf exists. If not file myslides.tex compiles without included thumbnails.

Update 2:

The reason for the error message you got

Error: PDF file is damaged - attempting to reconstruct xref table...

is simple: you want to copy the file myslides.pdf you have already opened to compile it. That's not possible. So you have to first compile the presentation to get the frames and to close this file myslides.pdf. Then copy the file myslides.pdf to myslides-copy.pdf to include the thumbnails from myslides-copy.pdf into a new compiled file myslides.pdf.