Simple Demo
A very simple demo that creates a XObject stamp and adds it to all pages of a document.
The XObject stamp class allows you to create the stamp appearance absolutely individually by access its canvas object.
PHP
<?php
// load and register the autoload function
require_once __DIR__ . '/../../../../../../bootstrap.php';
// create a writer
$writer = new \SetaPDF_Core_Writer_Http('smile.pdf', true);
// get a document instance
$document = \SetaPDF_Core_Document::loadByFilename(
$assetsDirectory . '/pdfs/lenstown/Laboratory-Report.pdf',
$writer
);
// create a stamper instance
$stamper = new \SetaPDF_Stamper($document);
// create a XObject
$xObject = \SetaPDF_Core_XObject_Form::create($document, array(0, 0, 205, 205));
// get the Canvas
$canvas = $xObject->getCanvas();
// Let's draw a smilie ;-)
$canvas
->setStrokingColor('#FF0000')
->setNonStrokingColor('#FFFF00')
->rotate(102.5, 102.5, 15)
->path()
->setLineWidth(5)
->draw()
->circle(102.5, 102.5, 100, \SetaPDF_Core_Canvas_Draw::STYLE_DRAW_AND_FILL) // head
->circle(60, 120, 15) // left eye
->circle(140, 120, 15) // right exe
->path()
->moveTo(50, 60)
->curveTo(60, 20, 145, 20, 155, 60) // mouth
->stroke();
// create the stamp object for the XObject
$xObjectStamp = new \SetaPDF_Stamper_Stamp_XObject($xObject);
$xObjectStamp->setOpacity(.5);
$stamper->addStamp($xObjectStamp, \SetaPDF_Stamper::POSITION_CENTER_MIDDLE);
// stamp the document
$stamper->stamp();
// save and send it to the client
$document->save()->finish();