If you know your current password, you can change it from your PayPal account profile page. Here’s how:

1. Log in to your PayPal account.
2. Click My Account at the top of the page.
3. Click Profile at the top of the page.
4. Click the Password link in the Account Information column.
5. Select Password.
6. Click Edit. You may be required to confirm your account information.
7. Enter your current password.
8. Enter your new password.
9. Click Save.

If you do not know your current password, you can create a new password by confirming your identity. Here’s how:

1. Go to the PayPal homepage.
2. Click the password link in the Account login box.
3. Enter the email address registered on your PayPal account.
4. Enter the characters shown in the image in the text box.
5. Click Continue.
6. Confirm your account information and click Continue.
7. Verify additional account information and click Continue.
8. Enter and re-enter your new password and click Submit.

For more info, please visit the following link by Paypal, by clicking here.