How to generate dynamic Certificate in PHP using FPDF

Tech Area
Last updated on: January 8, 2026

In this tutorial, we discuss how to generate dynamic certificate in PHP. To generate dynamic certificate you have to download FPDF. FPDF is a PHP class which allows to generate PDF files with pure PHP, that is to say without using the PDFlib library.

Below are the step by step process of how to generate certificate in PHP using FPDF.

Step 1: Click on below link to download FPDF

http://www.fpdf.org/

Step 2: Design a certificate in .jpg/.jpeg format

Step 3: Download any suitable font file for certificate

In this step, download ‘Calibri_Regular’ font file.

Step 4: Create a folder to store dynamically generated certificate

In this step, create folder name ‘download-certificate’ to store dynamically generated certificate.

Step 5: Create index.php

In this step, create a new file index.php. This is the main file used to generate certificate.

index.php

<?php
require("fpdf/fpdf.php");
header('content-type:image/jpeg');
$font = "E:/xampp/htdocs/ecertificate/Calibri_Regular.ttf";
$time = time();

$image = imagecreatefromjpeg("Certificate.jpg");
$color = imagecolorallocate($image,19,21,22);
$name = "oliver sam";
imagettftext($image,90,0,690,800,$color,$font,$name);
                    //(size,angel,left-right,up-down)
imagejpeg($image,"download-certificate/$time.jpg");
imagedestroy($image);

$pdf = new FPDF();
$pdf->AddPage();
$pdf->Image("download-certificate/$time.jpg",0,0,210,148);
ob_end_clean();
$pdf->Output();
?>

After successfully follow all the step, you will find like this.