if you can find paypal offers on p2p marketplaces (localbitcoins, paxful, this forum) you'll probably pay a big mark-up over exchange prices. if your partner can withdraw the paypal balance to his bank account, he can deposit to an exchange and pay normal prices. that's probably the best way to go.
It all depends on sellers, but most sellers here on forum offer an option 1:1 based on prevv price, and some offers include a premium price so you can get more fiat for your BTC.
the OP (or his partner) wants to buy bitcoin with paypal. who is selling at at 1:1 to a jr member with no trading history?
the standard fee for untrusted users in the currency exchange forum is is ~ 20% right now. only green trusted and longtime users are getting 1:1 or paying 5%.
Regarding withdrawal money from PP to bank account, this is possible in some countries, but should take into account the fact that banks may share that info with tax administrations, and if that money is not coming from some legal source an awkward situation can occur.
obviously. the point was to explain that exchanges won't touch paypal, hence the large premium paypal users pay to get BTC.