What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
JotForm Support Manager
If you want to brand your form you can do that by either inserting your own logo, see a few templates here:
Also, you might want your form's link to show your custom domain, this is also possible
On regards to getting signatures, that is also possible, here are some widgets you can add to your forms:
I hope this answers your questions.