# How to reduce the space between two figures side by side?

I would like to reduce the space between two figure that are side by side. I am using the following code but I don't know how to do that.

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{caption}

\begin{document}

\begin{figure}
\begin{subfigure}[tbp]{0.3\textwidth}
\includegraphics[width=\textwidth]{img1}
\end{subfigure}
%
\begin{subfigure}[tbp]{0.4\textwidth}
\includegraphics[width=\textwidth]{img2}
\caption{SLS}
\label{fig:atzeni_sls}
\end{subfigure}
\caption[.]{Fluoriscent lamp holder. Traditional on left-side, CAD redesigned centered, and SLS manufactured on right-side}
\label{fig:lamp}
\end{figure}

\end{document}


Moreover, do you know how to have the caption of each of the figure at the same hight?

• The optional argument to the subfigure environment can either t, c, or b, not a combination of them. There shouldn't be more than a normal interword space between them I believe, if you see more than that it is because there is whitespace in the images themselves, and cropping is in order. – Torbjørn T. Sep 29 '16 at 14:43

A negative \hskip in between reduces the space. Shifting from [tbp] to [b] aligns the subfigures entirely at their bottoms, including aligning the captions at the bottom. But this also aligns the images at their bottoms; I don't know if you mind this or not.

Here's the modified source; you can change -2ex to whatever distance you want.

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{caption}

\begin{document}

\begin{figure}
\begin{subfigure}[b]{0.3\textwidth}
\includegraphics[width=\textwidth]{img1}
\end{subfigure}
\hskip -2ex
\begin{subfigure}[b]{0.4\textwidth}
\includegraphics[width=\textwidth]{img2}
\caption{SLS}
\label{fig:atzeni_sls}
\end{subfigure}
\caption[.]{Fluoriscent lamp holder. Traditional on left-side, CAD redesigned centered, and SLS manufactured on right-side}
\label{fig:lamp}
\end{figure}

\end{document}


If you want to align captions without aligning the pictures, I think you want \subcaptionbox. Here's an example:

\begin{figure}
\hskip -2ex
\subcaptionbox{SLS\label{fig:atzeni_sls}}[0.4\textwidth]{\vspace*{3em}\includegraphics[width=0.4\textwidth]{img2}}
\caption[.]{Fluoriscent lamp holder. Traditional on left-side, CAD redesigned centered, and SLS manufactured on right-side}
\label{fig:lamp}
\end{figure}


In this case, I've moved the second image up with \vspace*{}, but of course you can move it however you prefer. Note as well that \textwidth is not redefined inside a subcaptionbox, so the width argument to \includegraphics has changed.

• Yes fantastic! but what if I want to have the two figure in a precise location that is not the bottom? then how do I align the subcaption? – Alexis Charalambis Sep 29 '16 at 14:34
• Then I think what you want is \subcaptionbox. I'll edit my answer to give an example. – Dave Ripley Sep 29 '16 at 14:46