jExperience - Forms bridge gives you the opportunity to use jExperience profiles to build smarter forms : store the form values in the profiles, prefill the form elements, set them to read-only or hide them, with a few clicks. 
Progressive profiling is also available : you can decide to show a form element depending on what you know of your visitor in jExperience. You 'll never have to ask your visitors the same information again and you can take advantage of this to ask new and relevant questions!

 

You can find more information on this module on Jahia academy