Often we are forced to write our manuscripts with a specific style file or document class, which sometimes has ridiculously large margins. Is there an easy way to work out how to shrink the paper size at the expense of reducing the margins? That is, achieve the same effect as taking a pair of scissors trimming the margins down.
Smaller margins would be nice when preparing the manuscript as it allows me to have the preview zoomed in without cropping the page. It is important that the layout of the text remains fixed; text width and page breaks have to be identical to the version with the original margins.