Filipe Paiva - 2010-07-02

I'm using the option \documentclass{article} and the Kile generates a correct
text on a A5 paper. Nevertheless, when I compile with the LATEX compiler I get
a an A5 text floating on a A4 page (the same happens if I create a pdf with
the DVItoPDF). But if I compile with PDFLATEX, I get the correct A5 text on a
A5 page.

Why? Where in Kile is the paper size settings?

A related question, probably not concerning Kile is: how do I built a PDF file
with my A5 pages two by two on a A4 page?