pdf417_ex4.php
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<?php // content="text/plain; charset=utf-8"
require_once ('jpgraph/pdf417/jpgraph_pdf417.php');
 
$data = 'PDF-417';
 
// Setup some symbolic names for barcode specification
 
$columns = 8;   // Use 8 data (payload) columns
$errlevel = 4;  // Use error level 4
$modwidth = 2;  // Setup module width (in pixels)
$height = 2;    // Height factor (=2)
$showtext = true;  // Show human readable string
 
try {
    // Create a new encoder and backend to generate PNG images
    $encoder = new PDF417Barcode($columns,$errlevel);
    $backend = PDF417BackendFactory::Create(BACKEND_IMAGE,$encoder);
 
    $backend->SetModuleWidth($modwidth);
    $backend->SetHeight($height);
    $backend->NoText(!$showtext);
    $backend->SetColor('black','yellow');
    $backend->Stroke($data);
}
catch(JpGraphException $e) {
    echo 'PDF417 Error: '.$e->GetMessage();
}
?>