\documentclass[a4paper,11pt]{article}
\usepackage[color]{lapdf}
\textheight25.12cm
\textwidth18.92cm
\oddsidemargin-1.5cm
\evensidemargin-1.5cm
\topmargin-0.5cm
\topskip0cm
\headheight0cm
\headsep0cm
\parskip0.5cm
\parindent0cm
\unitlength1cm

