# Extra space after the figure or table caption

I want to change figures and table naming from Figure 1 to Figure S1 and analogously for tables. I tried to use:

\captionsetup[figure]{name=Figure S}


or

\renewcommand{\figurename}{Figure S}


but what I get in these cases is Figure S 1. I don't want that extra space between S and figure/table number. How can I get rid of that?

use

\captionsetup[figure]{name=Figure}
\captionsetup[table]{name=Table}
\renewcommand\thefigure{S\arabic{figure}}
\renewcommand\thetable{S\arabic{table}}


Maybe that Figure and Table are already the predefined names. Then you do need the first two lines.

If you don't want that the “S” is part of the cross references, you can add it to the figure name:

\documentclass{article}

\usepackage{caption}

\DeclareCaptionLabelFormat{nospace}{#1#2}
\captionsetup[figure]{name={Figure S},labelformat=nospace}

\begin{document}

\begin{figure}[htp]
\centering

\fbox{placeholder}

\caption{A label\label{test}}

\end{figure}

See figure~\ref{test}

\end{document}