How to insert an image from PHP into PDF 1.7

Question

I'm creating a web app that allows a canvas form to insert an image from a HTML canvas into a particular position in multiple PDF files. I had this working with python flask as a back-end but the people that I'm making it for only want it in PHP. I have tried using libraries like FPDI but they only work with PDF versions up to 1.4 while the PDF files we are using are version 1.7.

Does anyone know any possible libraries that can help me solve this issue. I would prefer not to convert the PDF files if possible.

Cheers

Answer 1

With TCPDF you can insert images into a PDF (v.1.7) file:

Requirements

composer require tecnickcom/tcpdf

Example

<?php

require_once __DIR__ . '/vendor/autoload.php';

$pdf = new TCPDF();
$pdf->setPDFVersion('1.7');
$pdf->setAutoPageBreak(true);
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);

$pdf->AddPage();

// Insert image
$pdf->setJPEGQuality(100);
$pdf->image(__DIR__ . '/example.jpg', 10, 10);

// Close and output PDF document
//$pdf->output('doc.pdf', 'I');

// Save the pdf file
$content = $pdf->output('', 'S');
file_put_contents('example.pdf', $content);