If you have them in an exchange like coinbase.com: (1) sell them into your bank account, (2) connect your bank account to PayPal, (3) transfer them from your bank account to PayPal. If you have them on your hard-drive, step (0) is to open an account on an exchange like coinbase.com and send them to your account. – Alin Tomescu – 2018-02-02T22:09:04.280

@AlinTomescu It would be useful if you would write your response as an answer. – Willtech – 2018-02-03T09:01:22.723