I have a LaTeX file in which I don't want a page number to be printed. Its preamble looks like this:
Code:
\documentclass[a4paper,10pt]{article}
\usepackage[left=2.5cm,right=1.85cm,top=2.5cm,bottom=2cm,noheadfoot]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{indentfirst}
\usepackage{url}
\pagestyle{empty}
\title{}
\author{Ferio}
\date{}
I've just learned from Guide to LaTeX, 4th edition, by Helmut Kopka and Patrick W. Daly, that the "\pagestyle{empty}" command should do the trick, but it doesn't work. Am I wrong? If so, how could I do it?

Thank you in advance.