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.
Yes, you need to enable the Auto Fill feature in your form to allow your users to fill your form later. Check this guide: http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature
Please note that this method will work only when the user is using the same computer and browser to complete the form.
If you have further questions, please let us know.