How do I remove the whitespace above the first text in an article?

\documentclass{article}
\begin{document}
foo
\end{document}


This code leaves a very big whitespace above foo. Why is this and how do I make it smaller?

\usepackage[showframe=true]{geometry} (thanks for the tip cmhughes) gives me

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What do you mean with space? Do you mean the margin size? – azetina Aug 20 '12 at 20:42
adjust the page size using geometry. If you use \documentclass{article}\usepackage[showframe=true]{geometry} \begin{document} foo \end{document}  then you'll have a nice visualization of the current page setup – cmhughes Aug 20 '12 at 20:45
@azetina That's exactly the question. I don't know why this white space is there. If I knew it was f.e. the margin size, I could look into how to change that value, but I don't know what it is that causes it. – Edward Stumperd Aug 20 '12 at 20:47
The extra white space is usually for headers and footers like footnotes or for example with the fancy page style the headers and footers. You can use: \usepackage[top=length,bottom=length]{geometry} or the sort. Do you have experience with the geomtery package? – azetina Aug 20 '12 at 20:53
No, I'm afraid I had no experience with it before your post. – Edward Stumperd Aug 20 '12 at 21:13

\documentclass{article}