I think my english will not be sufficient to talk about this problem in a detailed way.
But when you are saying "The solutions are all T1 centric" is that means the other devices don't have this problem (the impossibility to change the font-family)?
I think I will continue with the solution I found (the conversion) unless I learn one day the CSS coding.
Even though I have not been able to understand all your advises (the CSS language is far too technical for my comprehension), thank you very much for taking time to respond to my questions.