What are the potential limitations of using HTML/CSS for printing documents in PHP, and when should a PDF library like fpdf be considered?

When using HTML/CSS for printing documents in PHP, potential limitations include inconsistent rendering across different browsers and difficulties in controlling page breaks. In cases where precise layout control and consistent printing results are required, it may be necessary to use a PDF library like fpdf.

// Example of using fpdf library to generate a PDF document

require('fpdf.php');

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