What are some common challenges faced when trying to center a PDF417 barcode in a PDF form using TCPDF in PHP?

When trying to center a PDF417 barcode in a PDF form using TCPDF in PHP, one common challenge is aligning the barcode properly within the PDF document. To solve this issue, you can use TCPDF's SetXY() method to position the barcode in the center of the page. 

// Create new TCPDF object
$pdf = new TCPDF();

// Add a new page
$pdf->AddPage();

// Set barcode position to center of the page
$pdf->SetXY(($pdf->GetPageWidth() / 2) - 50, ($pdf->GetPageHeight() / 2) - 25);

// Generate PDF417 barcode
$pdf->write2DBarcode('PDF417', 'PDF417', '', '', '', 18, array(), 'N');

// Output PDF
$pdf->Output('example.pdf', 'I');

Keywords

PDF417 barcode centering TCPDF PHP

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