To filter out whitespaces in pictures in LaTeX

Answer 1

Google says: http://www.andy-roberts.net/misc/latex/latextutorial5.html Down the bottom is an example of how to crop an image.

A forum post about the same thing: http://www.latex-community.org/forum/viewtopic.php?f=5&t=2467&start=0&st=0&sk=t&sd=a

Answer 2

I suggest using pdfcrop (http://www.ctan.org/tex-archive/support/pdfcrop/) that hopefully is present in your TeX installation.