Depends on the PDFs you're interested in. Many use only embedded TrueType (Type42) fonts, which I assume are handled by the usual Microsoft renderer. (If you'r

Depends on the PDFs you're interested in. Many use only embedded TrueType (Type42) fonts, which I assume are handled by the usual Microsoft renderer. (If you're reading lots of LaTeX-generated papers, then yes, you're probably seeing PostScript fonts.)