Cfrgtkky

To expand a picture imported with includegraphics that is wider than heigh to the width of the text block, you just do this:

includegraphics[width=textwidth]{ ... }

When they are heigher than wide, you could do pretty much the same with the text height:

includegraphics[height=textheight]{ ... }

However, because pictures are often included in floats, there is a caption. This caption has a certain height and includegraphics[height=textheight]{ ... } make the figure overflow in the margin.

This leads to the following:

1. Is there a way to tell to includegraphics that the height of the picture must be the difference between textheight and the height of the caption (with the needed space around of course)?


2. How to generalise this kind of behaviour to the case where there are several floats or subfloats in the same “row” or “column” by saying to includegraphics something like “take the maximum allowed space”?

I think it could be more general and maybe someone else could expand or precise this.

daleif suggested to use the adjustbox package. It is very interesting and gives access to the maximum dimensions of pictures.

I tried two interesting things:

1. 
   

   To use adjincludegraphics in place of includegraphics inside a figure environment:

   
   
   

   begin{figure}
   
     adjincludegraphics[max height=textheight]{ ... }
   
   caption{Some text}
   
   

   
   
   

   I also tried max totalheight, but I don’t see a difference (the manual doesn’t say anything about it.) This doesn’t work: the picture is scaled but the caption is still outside the margins.

   
   


2. 
   

   To use the adjustbox environment which can emulate floats:

   
   
   

   begin{adjustbox}{float=figure,caption={Some text}, max height=textheight}
   
     includegraphics{ ... }
   
   end{adjustbox}
   
   

   
   
   

   This does not work unless I remove float=figure (and then there is no caption.) The figure (alone) option doesn’t work either. With float=figure, there is absolutely nothing appearing in the document but a blank page.

   
   

I think the second solution is better, but I can’t get it working properly.

See the adjustbox package, it can add features to includegraphics, including an max width/max height option that might be useful in your case.

The order of the used keys is important. As you create a float the resizing must be done beforehand, i.e. max height first, then define the caption and finally tell adjustbox that you want a figure (figure key or float=figure).
If you use the caption key after figure it comes to late. max height after figure will create a figure environment inside a resizebox which does not work.

You should use textheight-baselineskip as maximum height as you still need space for the caption (increase to 2baselineskip if you have a two line caption and so on).

Note that there is also adjustimage which reduces the amount of code.

documentclass{article}



usepackage{adjustbox}

usepackage{mwe}% for example text and image only



begin{document}

blindtext



begin{adjustbox}{max height=textheight-baselineskip,center,caption={Some text},float=figure}

  includegraphics{example-image-a3}

end{adjustbox}

% or just

%adjustimage{max height=textheight-baselineskip,center,caption={Some %text},float=figure}{example-image-a3}



blindtext



end{document}