$pdf = new FPDF(); $pdf->AddPage(); $pdf->SetMargins(20,20,20); // set 2cm margins
$pdf = new FPDF(); $pdf->AddPage(); if ($pageno % 2 == 0) { $pdf->SetLeftMargin(20); // set margin for even numbered pages } else { $pdf->SetRightMargin(20); // set margin for odd numbered pages }The code examples above use the FPDF package library for PHP.