beamercaptionsfontsize
I am creating a beamer presentation and I would like to change the size of the caption under the figures. I am using the Madrid theme.
I tried the obvious way:
\caption{\scriptsize{Text of the caption.}}
and
\setbeamerfont{caption}{size=\scriptsize}
in the preamble of the document.
However none of that seems to have any effect.
You don't need the caption package for this.
Simply issue the command
\setbeamerfont{caption}{size=\footnotesize}
MWE
\PassOptionsToPackage{demo}{graphicx} % remove in your document
\documentclass{beamer}
\usepackage{mathtools}
\usepackage{graphicx}
\usepackage{lmodern}% http://ctan.org/pkg/lm
\graphicspath{{images/}}
\usetheme{default}
\setbeamerfont{caption}{size=\footnotesize}
\begin{document}
\begin{frame}
\begin{figure}[h]
\centering
\includegraphics[scale=0.8]{axb-grid}
\caption{$A \times B$ grid}
\label{fig:axbgrid}
\end{figure}
\end{frame}
\end{document}
Output:
While with old versions of beamer, caption commands used to work, it seems that now the caption package is not able to recognize beamer anymore.
In fact, loading caption with beamer you get the following warning:
Package
captionWarning:\captionwill not be redefined since it's already(
caption) redefined by a document class or package which is(
caption) unknown to thecaptionpackage.See the
captionpackage documentation for explanation.
If you want caption and its \captionsetup to work with beamer, you have to load caption with the option compatibility=false:
\usepackage[compatibility=false]{caption}
but, as the documentation warns:
But please note that using this option is neither recommended nor supported since unwanted side-effects or even errors could occur afterwards.
Something like this. Move \fontsize{9}{11}\selectfont into the caption {}.
Code
\documentclass[12pt]{article}
\usepackage{floatrow}
\usepackage{graphicx}
\usepackage[draft]{pgf}
%\usepackage[font={scriptsize}]{caption} % if only the word `Caption` and `Figure` needs to be small too.
\floatsetup[table]{capposition=top}
\floatsetup[figure]{capposition=bottom}
\begin{document}
\begin{table}
\caption{\fontsize{9}{11}\selectfont My awesome table}
\begin{tabular}{*4{l}}
A & B & C & D\\
x & w & y & z\\
1 & 2 & 3 & 4\\
\end{tabular}
\end{table}
\begin{table}
\caption{My awesome table}
\begin{tabular}{*4{l}}
A & B & C & D\\
x & w & y & z\\
1 & 2 & 3 & 4\\
\end{tabular}
\end{table}
\begin{figure}
\centering
\begin{pgfpicture}
\pgftext{\pgfimage[width=5cm,height=4cm]{scratch.png}}
\end{pgfpicture}
\caption{\fontsize{9}{11}\selectfont My awesome picture}
\end{figure}
\end{document}
Best Answer
Use the caption package:
\usepackage{caption}Then use captionsetup:
\captionsetup{font=scriptsize,labelfont=scriptsize}Have fun with LaTeX!