Are there any best practices for optimizing PDF generation performance in PHP?

To optimize PDF generation performance in PHP, it is recommended to use a library like TCPDF or FPDF instead of relying on PHP's built-in functions like `fopen()` and `fwrite()`. These libraries are specifically designed for creating PDFs and offer better performance and functionality.

// Example using TCPDF library for PDF generation
require_once('tcpdf/tcpdf.php');

$pdf = new TCPDF();
$pdf->AddPage();
$pdf->SetFont('Arial', '', 12);
$pdf->Cell(0, 10, 'Hello World', 0, 1, 'C');
$pdf->Output('example.pdf', 'I');