# picture width problem

I need to make the picture with the width of one column in two column paper, and I wrote \linewidth but it doesn't work as shown below; it's smaller than the width and also it is very small. I need to make it bigger; any help?

\begin{figure}[H]
\centering
\includegraphics[width=\linewidth]{Data/classoutput.eps}\label{pic10}
\caption{Caption}
\end{figure}

• You most like have a white border around the image. To see whether this is the case, use \fbox{\includegraphics[width=\dimexpr\linewidth-2\fboxsep-2\fboxrule]{<image>}}. – Werner Apr 9 '13 at 4:04
• no i didn't want to have a border, i need to increase the width of the photo from both side – SMH Apr 9 '13 at 4:07
• What I'm saying is that \fbox will show you whether you actually already have a white border around the image. Post the output with what I presented above so we can see what it looks like. – Werner Apr 9 '13 at 4:10
• The picture is supposed to stay the same size (actually a tad smaller). Either way, it idea behind asking you to actually show the image with the border would be to highlight whether or not there is a thick white border around your image. If so (which is likely), then you should use epstool to trim the whitespace around the image... – Werner Apr 9 '13 at 4:21
• – Werner Apr 9 '13 at 4:22

your image has a lot of whitespace around it. You can clip the image with

\includegraphics[trim=20 20 20 20,clip]{...}


(choose correct four values, in my example it is 20pt on all sides).

With PSTricks.

% filename is main.tex
% compile it with pdflatex -shell-escape main.tex

\documentclass{article}
\usepackage{filecontents}
\begin{filecontents*}{dummy.tex}
\documentclass[pstricks,border=12pt]{standalone}
\usepackage{pstricks}
\usepackage{graphicx}
\newsavebox\IBox
\sbox\IBox{\includegraphics{example-image-a}}

\psset
{
xunit=\dimexpr\wd\IBox/10,
yunit=\dimexpr\ht\IBox/10,
}

{
griddots=0,
gridcolor=red,
gridwidth=0.4pt,
subgriddiv=5,
subgridcolor=green!50,
subgridwidth=0.1pt,
gridlabels=5pt,
}

\begin{document}
\begin{pspicture}[showgrid=top](10,10)
\rput[bl](0,0){\usebox\IBox}
\end{pspicture}

\begin{pspicture}[showgrid=false](5,5)(10,10)
\psclip{\psframe[dimen=middle,linestyle=none](5,5)(10,10)}
\rput[bl](0,0){\usebox\IBox}
\endpsclip
\end{pspicture}
\end{document}
\end{filecontents*}

\immediate\write18{latex dummy}
\immediate\write18{dvips dummy}
\immediate\write18{ps2pdf dummy.ps}

\usepackage{graphicx}
\begin{document}
Karl's students do not care about dashing patterns.
\begin{figure}[hbtp]
\centering
\includegraphics[page=2,width=0.8\linewidth]{dummy}
\caption{The cropped image}
\label{fig:TheCroppedImage}
\end{figure}
Karl's students do not care about arrow tips. Karl's students, by the way, do not know what a transformation matrix is.
\end{document}