How do I edit a form link to personalize it?

There are two ways to edit a form link to personalize it:

Create a Custom URL of a form

To find out how to make custom URL of a form you can read following article:

http://www.jotform.com/help/261-How-to-create-a-Custom-URL-of-a-form 

Custom Domains with Jotform

You can put your form on custom domain. To find out how to do it you can read following article:

http://www.jotform.com/help/144-How-to-use-Custom-Domains-with-Jotform 

Hope this will help. Let us know if you need further assistance.