How to add Paypal payment tool whcih gives option to pay using credit card?

Hi,

I am building a registration form with payment collection. I have paypal account. And, I I want to integrate my paypal account in the form whch gives credit card number input form to pay to my paypal.

Is this possible? should I use paypal checkout for this?

Do you mean to say that you want users to pay only using credit card and not from PayPal account?

I would suggest you please add PayPal Pro payment tool in form which will allow you to set "Default Payment Method" as "Credit Card". We can then inject custom css code in form to hide the PayPal option which will ensure user can only pay through credit card. Please check the screenshot below:

Hope this helps.

Do get back to us if you have any questions.

Thank you for your reply.
You answered my question. I wonder if it is easy to refund just in case. Or
is it done through paypal pro system?
...

JotForm does not allow to process the refunds as they need to be issued from the payment gateway you integrated on your form since you are using PayPal you will need to issue the refund from your PayPal account. 

Here's an article from PayPal help that may help you: https://www.paypal.com/us/selfhelp/article/How-do-I-issue-a-full-or-partial-refund-FAQ780

Let me know if you have any questions.