How does PHP interact with FPDF to calculate the total number of pages in a PDF document?

To calculate the total number of pages in a PDF document using FPDF in PHP, you can create a new instance of the FPDF class, open the PDF file, and use the `getNumPages()` method to get the total number of pages. 

<?php
require('fpdf.php');

$pdf = new FPDF();
$pdf->AddPage();
$pdf->setSourceFile('example.pdf');
$totalPages = $pdf->getNumPages();

echo "Total number of pages in the PDF document: " . $totalPages;
?>

Keywords

PHP FPDF PDF document total number of pages interaction

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