How To Print Pdf In A Drupal Custom Module & Print Barcode In The Bottom Of The Pdf?

Module: print_pdf  

Menu Callback Function        : print_pdf_menu()

Access Permission Function  : print_pdf_permission()

Form                                       : print_pdf_form()

<?php

function print_pdf_menu() {

  $items = array();

  $items['print_pdf'] = array(

    'title' => 'Download PDF', //page title

    'description' => 'Download PDF File ',

    'page callback' => 'drupal_get_form', //this is the function that will be called when the page is accessed.  for a form, use drupal_get_form

    'page arguments' => array('print_pdf_form'), //put the name of the form here

    //'access callback' => TRUE ,

            'access arguments' => array('Download PDF'),

  );

  return $items;

}

function print_pdf_permission()

{

    return array(

        'Download PDF' =>  array('title' => t('Download PDF')),

    );   

}

function print_pdf_form($form, &$form_state)

{

//print barcode also

$html=”<table style='border:2px solid'><tr><td>Test pdf </td></tr></table><div> Code39 : <barcode code='9865457216' type='C39' size='0.5' height='2.0' /></div>

<div> ISBN : <barcode code='1234567890' type='isbn' size='0.5' height='2.0' /></div>

<div> Code93 : <barcode code='987654321' type='c93' size='0.5' height='2.0' /></div>”;

include ("sites/all/modules/mpdf/mpdf.php");

$current_date=format_date(time(), 'custom', 'Y-m-d h:i:sA ');

$mpdf=new mPDF('win-1252','A4','','','14','14','18','14');

$mpdf->SetDisplayMode('fullpage');

$mpdf->list_indent_first_level = 0;

//$stylesheet = file_get_contents('sites/all/modules/mpdf/examples/mpdfstyleA4.css');

$mpdf->mirrorMargins = 1;

//To print url & current date in header

$mpdf->SetHTMLHeader('<div style="text-align: right;float:left;">'.$current_date.'&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;'.$base_url.'</div>', 'O');

$mpdf->defaultPageNumStyle = '1';

$mpdf->setFooter('<div style="text-align: right;font-size:18px;font-style: italic;">{PAGENO}</div>');

//$mpdf->WriteHTML($stylesheet,1);

$mpdf->WriteHTML($html);

$mpdf->debug = true;

$mpdf->Output("test.pdf",'D');

  return $form; 

}