Problem in PDF invoice print

I have cs-cart 2.1.2 version and when i try to print invoice , this message appear :

Cannot get font metrics for /hermes/bosweb/web128/b1280/ipg.venusmartcom/test/lib/html2pdf/fonts/arialuni.ttf. You can download this font by yourself

Don’t know if you solve it.

All you have to do is to search font, download and up-load in the specified folder and problem is solved

is there any way to change the font ?

for example change to Tahoma