下载后把文件夹解压到如下路径

引入mpdf类并调用生成pdf的方法
/**
* 导出pdf文件
* www.shouce.ren
*/
public function actionPdf() {
$ds = DIRECTORY_SEPARATOR;
Yii::$enableIncludePath = false;
Yii::import('application.extensions.mpdf.mpdf', 1);
$mpdf=new mPDF('','A4', 0, '', 0, 0);
$mpdf->autoScriptToLang = true;
$mpdf->autoLangToFont = true;
// $sign_path='';
// //$mpdf->SetWatermarkImage($sign_path, 1, '', '');
// $mpdf->WriteHTML('<style>body {background-image:url('.$sign_path.'); background-image-resize:1}</style>');
// $mpdf->showWatermarkImage = true;
// $mpdf=new mPDF('UTF-8','A4','','',15,15,44,15);
// $mpdf->useAdobeCJK = true;
// $mpdf->SetAutoFont(AUTOFONT_ALL);
// $mpdf->SetDisplayMode('fullpage');
// //$mpdf->watermark_font = 'GB';
// //$mpdf->SetWatermarkText('中国水印',0.1);
// $url = 'http://www.你的域名.com/';
// $strContent = file_get_contents($url);
// //print_r($strContent);die;
// $mpdf->showWatermarkText = true;
// $mpdf->SetAutoFont();
// //$mpdf->SetHTMLHeader( '头部' );
// //$mpdf->SetHTMLFooter( '底部' );
// $mpdf->WriteHTML($strContent);
// $mpdf->Output('ss.pdf');
// //$mpdf->Output('tmp.pdf',true);
// //$mpdf->Output('tmp.pdf','d');
// //$mpdf->Output();
// $stylesheet =file_get_contents('themes/wei/css/bootstrap.min.css');
// $mpdf->WriteHTML($stylesheet, 1);
$ds = DIRECTORY_SEPARATOR;
$date_path =date('Y/m').'/';
$pdf_path = Yii::app()->basePath.$ds.'data'.$ds.'pdf'.$ds.$date_path;
if(!file_exists($pdf_path)) mkdir($pdf_path,777,true);
$content ='这是内容也可以引入一个html页面';
$mpdf->WriteHTML($content);
//$mpdf->Output($pdf_path);
$mpdf->Output('2015.pdf',true);
}前台直接调用这个方法即可生成pdf文件。