how do i get a pay with paypal button

I see you have posted the same question on this thread: https://www.jotform.com/answers/802298-Integration-of-Paypal-how-to-get-a-pay-with-paypal-button. 

I also noticed that you have found the answer, however, I would like to share you the link to our guide about PayPal forms: http://www.jotform.com/help/50-PayPal-Forms.