Are there any specific PHP libraries or extensions recommended for working with PDFs?

Working with PDFs in PHP often requires the use of libraries or extensions to manipulate, create, or extract data from PDF files. Some recommended PHP libraries for working with PDFs include TCPDF, FPDF, and Dompdf. These libraries provide functions to generate PDF files, add text, images, and other elements to PDFs, and manipulate existing PDF files.

// Example using TCPDF to create a simple PDF file
require_once('tcpdf/tcpdf.php');

$pdf = new TCPDF();
$pdf->AddPage();
$pdf->SetFont('Arial', 'B', 16);
$pdf->Cell(40, 10, 'Hello World!');
$pdf->Output('example.pdf', 'D');