PDF

PDF extension is intended to provide features for PDF manipulation, such as filling PDF forms, merging PDF files together or outputting PDF to the browser directly.

Installing and Configuring

Unpack extension files into extensions directory of your application. Add the following to includes list in the main config:

'ext.pdf.*'

Make sure you have pdftk installed. You can specify path to the pdftk console command using Pdftk::$path variable. By default it checks 'pdftk' and '/usr/bin/pdftk' paths.

Usage

If you want to output a PDF file to the browser you can use following code:

$pdf = new PdfFile('/home/user/mypdf.pdf');
$pdf->output();

If you want to change the name of the file outputted you can add an argument to the output method:

$pdf = new PdfFile('/home/user/mypdf.pdf');
$pdf->output('new_pdf_name.pdf');

If you need to fill out a PDF form and output result to the browser you should extend PdfForm:

TestPdfForm extends PdfForm
{

	function filePath()
	{
		return '/home/user/testPdfForm.pdf';
	}

	function rules()
	{
		return array(
			array('field1, field2, checkbox', 'safe'),
		);
	}

}

And now you can use it in your controller this way:

$pdfForm = new TestPdfForm;
$pdfForm->attributes = array('field1' => 'value1', 'field2' => 'value2', 'checkbox' => 'Yes');
if (false !== ($filledPdf = $pdfForm->fill()))
	$filledPdf->output('filledPdfForm.pdf');

You can also merge some PDF files together:

$pdf1 = new PdfFile('/home/user/pdf1.pdf');
$pdf2 = new PdfFile('/home/user/pdf2.pdf');
$pdf3 = new PdfFile('/home/user/pdf3.pdf');
$mergedPdf = $pdf1->merge($pdf2, $pdf3);
if ($mergedPdf instanceOf Pdf)
	$mergedPdf->output('out.pdf');

You can even merge PDF with itself

$pdf = new PdfFile('/home/user/pdf.pdf');
$mergedPdf = $pdf->merge($pdf);
if ($mergedPdf instanceOf Pdf)
	$mergedPdf->output('out.pdf');

There is an ability to apply one PDF file as a background for another one:

$pdf = new PdfFile('/home/user/in.pdf');
$pdf->applyBackground(new PdfFile('/home/user/back.pdf'))->output('pdf_with_watermark');

Credits

This extension is brought to you by CleverTech.