PHP/HTML to PDF document

I need to click a button to generate a link to a PDF version of my HTML inside a PHP file.
The PDF needs to be saved inside a folder and be retrieved as needed via a generated link for view or download.

I have already got this working with https://phptopdf.com although images cannot be saved into the PDF file, so that won't work for me. I need an alternative.

I just need the basics up and running, so long as it generates the PDF and for the link to be generated.

I will demo to the right person.
Thanks