How to add text to an existing pdf in php

Step1 : create a composer.json file

{
“name”: “Your name”,
“description”: “Edit existing pdf in php or laravel”,
“type”: “project”,
“authors”: [
{
“name”: “Your Name”,
“email”: “your email”
}
],
“require”: {
“setasign/fpdf”: “¹.8”,
“setasign/fpdi-fpdf”: “¹.6”
}
}

Step2 : run command composer install

Step3 : create a file called index.php and add the following code :

index.php

<?php
error_reporting(0);
// include composer packages
include “vendor/autoload.php”;

// Create new Landscape PDF
$pdf = new FPDI(‘l’);

// Reference the PDF you want to use (use relative path)
$pagecount = $pdf->setSourceFile( ‘certificate.pdf’ );

// Import the first page from the PDF and add to dynamic PDF
$tpl = $pdf->importPage(1);
$pdf->AddPage();

// Use the imported page as the template
$pdf->useTemplate($tpl);

// Set the default font to use
$pdf->SetFont(‘Helvetica’);

// adding a Cell using:
// $pdf->Cell( $width, $height, $text, $border, $fill, $align);

// First box — the user’s Name
$pdf->SetFontSize(‘30’); // set font size
$pdf->SetXY(10, 89); // set the position of the box
$pdf->Cell(0, 10, ‘Niraj Shah’, 0, 0, ‘C’); // add the text, align to Center of cell

// add the reason for certificate
// note the reduction in font and different box position
$pdf->SetFontSize(‘20’);
$pdf->SetXY(80, 105);
$pdf->Cell(150, 10, ‘creating an awesome tutorial’, 0, 0, ‘C’);

// the day
$pdf->SetFontSize(‘20’);
$pdf->SetXY(118,122);
$pdf->Cell(20, 10, date(‘d’), 0, 0, ‘C’);

// the month
$pdf->SetXY(160,122);
$pdf->Cell(30, 10, date(‘M’), 0, 0, ‘C’);

// the year, aligned to Left
$pdf->SetXY(200,122);
$pdf->Cell(20, 10, date(‘y’), 0, 0, ‘L’);

// render PDF to browser
$pdf->Output();

3. make sure to have certificate.pdf/or pdf you want to edit in that folder

4. run the file.

Reference:

https://www.webniraj.com/2016/09/12/creating-editing-a-pdf-using-php/