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Reading and Modifying PDF Files Using PHP
Today, we are going to talk about getting content of PDF documents. In addition, PDF is a document format of Adobe Acrobat developed by Adobe and abridgment of Portable Document Format. After giving this unnecessary information, let’s learn how to read PDF documents using PHP.
To open and read PDF documents via PHP, we need to use a package: TCPDF plug-in for reading PDF.
Reading and Modifying Content of PDF
You can download TCPDF package from here. This is a free package and you can use it easily. There are some examples from tecknick that show how to use this package:
Example 1.0: Creating a Simple PDF Document.
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| <?php
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 002');
$pdf->SetSubject('TCPDF Tutorial');
$pdf->SetKeywords('TCPDF, PDF, example, test, guide');
// remove default header/footer
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);
// set default monospaced font
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
//set margins
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
//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 font
$pdf->SetFont('times', 'BI', 20);
// add a page
$pdf->AddPage();
// print a line using Cell()
$pdf->Cell(0, 10, 'Example 002', 1, 1, 'C');
// ---------------------------------------------------------
//Close and output PDF document
$pdf->Output('example_002.pdf', 'I');
?> |
Output of Example 1.0:
http://www.tecnick.com/pagefiles/tcpdf/example_002.pdf
Example 2.0: Adding images to PDF files using PHP
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| <?php
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 009');
$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, 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);
// ---------------------------------------------------------
// add a page
$pdf->AddPage();
// set JPEG quality
$pdf->setJPEGQuality(75);
// Image example
$pdf->Image('../images/image_demo.jpg', 50, 50, 100, 150, '', 'http://www.tcpdf.org', '', true, 150);
// ---------------------------------------------------------
//Close and output PDF document
$pdf->Output('example_009.pdf', 'I');
?> |
Output of Example 2.0
http://www.tecnick.com/pagefiles/tcpdf/example_009.pdf
You can find more examples at here. You can also use just basic PHP PDF properties to manage PDF files. If you want to create your own package, the PHP PDF Functions are here.
By the way, we are not responsible from problems that you get because of using this package. Downloading, detecting bugs and using this package are only up to you.
it is very good information, thanks.