gistfile1.php

<?php
App::import('Vendor', 'DOMPDF', array('file' => 'dompdf' . DS . 'dompdf_config.inc.php'));

class CustomPDF extends DOMPDF { 
    public function Header() {
    	# Header code goes here
    }
	   
    public function Footer() {
		# Footer code goes here        
    }
}

class PdfView extends View {
	function render($action = null, $layout = null, $file = null) {
		# Grab rendered html and clear self::output
		$renderedTemplate = parent::render($action, $layout, $file);
		$this->output = '';

		# Create new PDF document
		$pdf = new CustomPDF(); 

		# Write HTML to PDF
		$pdf->load_html($renderedTemplate);
		$pdf->set_paper('letter', 'portrait');	
		$pdf->render();
		$renderedTemplate = '';

		# Output generated PDF
		$pdf->stream($this->getVar('filename') . '.pdf', array('Attachment' => true));
		
		return false;
	}
}
?>