Adding save function to form

I have created a form for judges to to judge a contest, but I cannot figure out a way to make the form auto save or to add a saving function to the form so they don't have to complete all the work at once. 

The judging process is long and this save option is crucial. 

If you don't mind allowing them to submit partial data and then return at a later time to update their data, you can send an edit submission link in your autoresponder email:

https://www.jotform.com/help/40-How-to-Let-Users-Update-Their-Form-Submissions-at-a-Later-Date

This way, the judges can fill out the parts they need to and return later to fill out the rest.