Can a client put their entire credit card number and info on the form securely?

Hi,

We do not allow for the collection of credit card details directly through the form.  It is actually against our terms of use.  Adding fields to your form that ask for such information will likely result in your forms and account being suspended by our system.  Phishing is one of our biggest concerns so we do limit what types of data you can collect.

If you need to authorize credit cards for later payment, I would recommend using one of our payment processors for authorization:

http://www.jotform.com/help/292-How-to-Enable-Payment-Authorization

If you have any further questions, let us know and we will be happy to help.