Paypal Payments with credit card and without registering an account.

Paypal Payments with credit card and without registering an account.

Hi.
 
I have configured Zoho Invoice with Paypal Standard as the online payment gateway. I don't want that my customers already have a Paypal account, I just want them to pay entering only their credit card number.
 
My problem is that they get redirected to a Paypal page with two options (see attached picture).:
- login with existing paypal account ("¿ Tiene una cuenta Paypal?" - in the picture)
- create a new one (" Abra una cuenta Paypal" - in the picture)
 
How can I show payment via credit card without registering on paypal?