From my understanding, either PEBC or WES shouldn't matter. With WES route, you'll need her degree and transcripts. But if you go with the PEBC route, you'll need to provide degree, transcripts, license in whichever country she's licensed in, and a letter of good standing from the appropriate pharmacy authorities in your country. So the PEBC route is harder/longer, that's why you go with that route if her intent is to practice. If not, WES should be fine and treated as a regular bachelor's degree.
People, correct me if I'm wrong.