Own fonts in PDF ... possible?

Is it possible to have your own font in PDF ?

I have added a ‘@font-face’ to my CSS, but it is silently ignored in PDF.
Isn’t it possible or what did I miss ?

I did it before as explain here : No customized fonts after upgrade to 1.4.10?
But as you can see, after last update to 1.4.10, I didn’t find the way to make the custom fonts works again :frowning:

See https://mpdf.github.io/fonts-languages/fonts-in-mpdf-6-x.html and the topic linked by @Spheerys.