Untitled

<?php

require_once('dompdf/dompdf_config.inc.php');

$html = <<<EOD

<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>

    <style>
    html, body { margin: 0; padding: 0; width: 490px; height: 490px; }
    .base { width: 490px; height: 490px; background-color: #FFBB33; }
    </style>
</head>
<body>

    <div class="base">
        Hello
    </div>

</body>
</html>

EOD;

CPDF_Adapter::$PAPER_SIZES['my_square_page'] = array(0, 0, 566.929134, 566.929134);
def("DOMPDF_DPI", 150);

$dompdf = new DOMPDF();
// $dompdf->load_html(file_get_contents('content.html'));
$dompdf->load_html($html);
$dompdf->set_paper('my_square_page','portrait');
$dompdf->render();

$pdf = $dompdf->output();
file_put_contents('salida.pdf', $pdf);