--- a/lib/tcpdf/examples/example_040.php
+++ b/lib/tcpdf/examples/example_040.php
@@ -1,1 +1,117 @@
+<?php
+//============================================================+
+// File name   : example_040.php
+// Begin       : 2008-10-28
+// Last Update : 2010-08-31
+//
+// Description : Example 040 for TCPDF class
+//               Booklet mode (double-sided pages)
+//
+// Author: Nicola Asuni
+//
+// (c) Copyright:
+//               Nicola Asuni
+//               Tecnick.com s.r.l.
+//               Via Della Pace, 11
+//               09044 Quartucciu (CA)
+//               ITALY
+//               www.tecnick.com
+//               info@tecnick.com
+//============================================================+
 
+/**
+ * Creates an example PDF TEST document using TCPDF
+ * @package com.tecnick.tcpdf
+ * @abstract TCPDF - Example: Booklet mode (double-sided pages)
+ * @author Nicola Asuni
+ * @since 2008-10-28
+ */
+
+require_once('../config/lang/eng.php');
+require_once('../tcpdf.php');
+
+// create new PDF document
+$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
+
+// set document information
+$pdf->SetCreator(PDF_CREATOR);
+$pdf->SetAuthor('Nicola Asuni');
+$pdf->SetTitle('TCPDF Example 040');
+$pdf->SetSubject('TCPDF Tutorial');
+$pdf->SetKeywords('TCPDF, PDF, example, test, guide');
+
+// set default header data
+$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE.' 040', PDF_HEADER_STRING);
+
+// set header and footer fonts
+$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
+$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));
+
+// set default monospaced font
+$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
+
+//set margins
+$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
+$pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
+$pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
+
+//set auto page breaks
+$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
+
+//set image scale factor
+$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
+
+//set some language-dependent strings
+$pdf->setLanguageArray($l);
+
+// ---------------------------------------------------------
+
+// set display mode
+$pdf->SetDisplayMode($zoom='fullpage', $layout='TwoColumnRight', $mode='UseNone');
+
+// set pdf viewer preferences
+$pdf->setViewerPreferences(array('Duplex' => 'DuplexFlipLongEdge'));
+
+// set booklet mode
+$pdf->SetBooklet(true, 10, 30);
+
+// set core font
+$pdf->SetFont('helvetica', '', 18);
+
+// add a page (left page)
+$pdf->AddPage();
+
+$pdf->Write(0, 'Example of booklet mode', '', 0, 'L', true, 0, false, false, 0);
+
+// print a line using Cell()
+$pdf->Cell(0, 0, 'PAGE 1', 1, 1, 'C');
+
+
+// add a page (right page)
+$pdf->AddPage();
+
+// print a line using Cell()
+$pdf->Cell(0, 0, 'PAGE 2', 1, 1, 'C');
+
+
+// add a page (left page)
+$pdf->AddPage();
+
+// print a line using Cell()
+$pdf->Cell(0, 0, 'PAGE 3', 1, 1, 'C');
+
+// add a page (right page)
+$pdf->AddPage();
+
+// print a line using Cell()
+$pdf->Cell(0, 0, 'PAGE 4', 1, 1, 'C');
+
+// ---------------------------------------------------------
+
+//Close and output PDF document
+$pdf->Output('example_040.pdf', 'I');
+
+//============================================================+
+// END OF FILE                                                
+//============================================================+
+