I’m sorry for this basic question, but…
what makes a 12pt font to be a 12pt font? Why a 12pt Helvetica is diﬀerent from a 12pt Times? Is it due to the diﬀerences in the relationships among their respectives x-height/ascenders/descenders?
How can I make a 8pt font (for example, to be used as a bitmap for Flash)? Does it mean that the overall height (ascenders + descenders) should be 8pt?