JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
For Paypal, you can use the Paypal and Paypal Express, users then can have the option to pay using credit or debit card when they are redirected to the Paypal gateway page.
If you are looking on to making the payment using credit card on the actual page of the form, it can be done using Paypal Pro, Authorize.net and Stripe. If you are using Paypal, you will need to have a Paypal Pro account, please see guide here: http://www.jotform.com/help/183-Difference-Between-PayPal-PayPal-Pro.
I hope this helps.