генерация PDF на основе ресурсов

<?php
$basePath = $modx->getOption('base_path');
$corePath = $modx->getOption('core_path');
$id = $resource->get('id');
$tpl = $modx->getOption('pdfTpl', $scriptProperties, 'pdfTpl');
$css = $modx->getOption('cssTpl', $scriptProperties, 'cssTpl');
$createField = $modx->getOption('pdfTV', $scriptProperties, 'createPDF');
$processTVs = $modx->getOption('processTVs', $scriptProperties, null);
$siteurl = $modx->getOption('site_url');
$params = array();
$assetsPath = $modx->getOption('assets_path');

$createPDF = $resource->getTVValue($createField);
if($createPDF != '1') {
   @unlink($assetsPath.$id.'.pdf'); //remove file if it exists
   return false; //exit plugin
}

$params = $resource->toArray();

$tvs = $modx->getCollection('modTemplateVar');
foreach ($tvs as $tv) {
    $params[$tv->get('name')] = (empty($processTVs) ? $tv->getValue($id) : $tv->renderOutput($id));
    if($tv->get('name') == 'pdfTpl' && $tv->getValue($id) != '' ) {
        $tpl = $tv->getValue($id);
    }
}

$html = $modx->getChunk($tpl, $params);
$css = $modx->getChunk($css, $params);
unset($params);

require_once($corePath.'components/htmltopdf/mpdf.php');

$mpdf = new mPDF('utf-8', 'A4', '8', '', 10, 10, 7, 7, 10, 10);
$mpdf->charset_in = 'utf-8';
$stylesheet = $css;
$mpdf->WriteHTML($stylesheet, 1);
$mpdf->list_indent_first_level = 0; 
$mpdf->WriteHTML($html, 2);
$mpdf->Output($assetsPath.'pdf/'.$id.'.pdf', 'F');