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I'm trying to accomplish the result in shown in following picture.

enter image description here

So far I have tried :

\begin{tabular}[h]{cm{5cm}m{5cm}c}
  fingerprint & Signature1 & \rule{5cm}{.5pt}  & fingerprint \\
  & & & \\
  \fbox{  \vspace{5cm} \rule{2cm}{0pt} }  & Signature2 & \rule{5cm}{.5pt} &  \fbox{ \vspace{5cm} \rule{2cm}{0pt} } \\
\end{tabular}

But the resulting fbox are really small, I thought about creating an image of the desired size and including, but I believe LaTeX has the tools needed to accomplish the task without external files. What I am surely missing is creating a simple framed box of a given size though, and I am not sure about being able to insert in a tabular environment.

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You can't use \vspace inside an \fbox. –  egreg Dec 27 '11 at 13:57
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4 Answers

up vote 7 down vote accepted
  1. The optional argument of \tabular or array isn't a placement option. The optional argument set the vertical alignment of tabular. Working parameters are b, t and c.
  2. fbox works like a hbox and you can use vertical space inside a single hbox. You can combine two rules for specifying the width and height.

    \fbox{\rule{2cm}{0pt}\rule{0pt}{5cm}}
    

    You can also set a single minipage inside fbox with a width and length.

Here is one possibility:

\documentclass{scrartcl}
\usepackage{array}
\begin{document}
\begin{tabular}{cm{5cm}m{5cm}c}
  fingerprint &  &  & fingerprint \\
  \smash{\fbox{\rule{2cm}{0pt}\rule[-3cm]{0pt}{3cm}}} & Signature 1 & \rule{5cm}{.5pt} &  \smash{\fbox{\rule{2cm}{0pt}\rule[-3cm]{0pt}{3cm}}}  \\[1cm]
  & Signature2 & \rule{5cm}{.5pt} &   \\
\end{tabular}
\end{document}
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just perfect, thanks a lot. –  ikks Dec 27 '11 at 14:26
    
This doesn't take into account the real height of the boxes. –  egreg Dec 27 '11 at 14:34
    
@egreg: What do you mean? The command smash? –  Marco Daniel Dec 27 '11 at 14:50
    
Try setting some text below the tabular. It will overstrike it. –  egreg Dec 27 '11 at 14:53
    
@egreg: Of course. The height of the fbox will be ignored. I know this. Do you think I should add a small explanation of smash? –  Marco Daniel Dec 27 '11 at 14:56
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You can use \framebox with its optional width argument and then inside of it a \rule{0pt}{<height>} as follows:

\framebox[<width>]{\rule{0pt}{<height>}}

Note that the amount of \fboxsep is added to all sides.

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Marco already points out some weak points in your code. To get vertical centering, the easiest thing is to use tabulars inside a tabular:

\begin{tabular}{ccc}
% First column
\begin{tabular}{@{}c@{}}
  Fingerprint 1 \\
  \setlength{\fboxsep}{-\fboxrule}%
  \framebox[2cm]{\rule{0pt}{5cm}}
\end{tabular}
&
% second column
\begin{tabular}{@{}ll@{}}
Signature 1 & \rule{5cm}{.4pt} \\[3ex]
Signature 2 & \rule{5cm}{.4pt} 
\end{tabular}
&
% third column
\begin{tabular}{@{}c@{}}
  Fingerprint 2 \\
  \setlength{\fboxsep}{-\fboxrule}%
  \framebox[2cm]{\rule{0pt}{5cm}}
\end{tabular}
\end{tabular}

enter image description here

With \setlength{\fboxsep}{-\fboxrule} you ensure that the box is exactly as wide and as high as you prescribe (in this case 2cm wide and 5cm high).

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Or use TikZ directly

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\node[minimum height=2.9cm,draw,minimum width=2.1cm,label={[inner sep=3mm]90:\textsf{fingerprint 1}}] {};
\node[minimum height=2.9cm,draw,minimum width=2.1cm,label={[inner sep=3mm]90:\textsf{fingerprint 2}}] at (10cm,0) {};
\node (sig1) at (3,0.8) {\textsf{signature 1}};\draw (sig1.east) -- ++(3.7cm,0);
\node (sig2) at (3,-.5) {\textsf{signature 2}};\draw (sig2.east) -- ++(3.7cm,0);
\end{tikzpicture}
\end{document}

enter image description here

share|improve this answer
    
nice package, worth looking at it. thanks –  ikks Dec 27 '11 at 14:26
2  
@ikks: I don't think it can be recommended enough. Every document I write now involves PGF/TikZ. It's worth investing a little time getting to know. The manual is a great way to learn it and see the kinds of things it can do. TeXample also has a lot of self contained examples to browse through and learn from. –  qubyte Dec 27 '11 at 14:30
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