I am using wkhtmltopdf to convert HTML files in PDF format; it gives surprisingly good results, rendering the PDF exactly as WebKit would do.
I am using Google Web F
I've been struggling with this for about two days now, my advice to you if none of the answers above work for you:
Install the font (ttf) in the machine that hosts the webserver and just require it in the css just like you would do with a common font.
body{
font-family: 'Lato';
}
Now wkhtmltopdf should be able to include the font