Really depends on the file, the font format, and viewing program (if you aren't talking about printing). Printed PS can look fine, and is still used in some ind

Really depends on the file, the font format, and viewing program (if you aren't talking about printing). Printed PS can look fine, and is still used in some industries for essential mail. Viewing programs are usually the poorer cousin of PDF viewers, presumably because PDF is much more easily parsed. PDF files tend to use TrueType fonts more, while PS might be using Type1, but that shouldn't matter much.