This entire task will be performed via JavaScript script for Illustrator.
The tutorial assumes that you're familiar with the basics of scripting. For
those who've directly landed on this tutorial, we have a little know-how
covered about Illustrator's Javascripts in
In a simpler way, we can code scripts to automate tasks or to obtain some
effect in Illustrator. Follow along to learn how to do that. In this tutorial,
we will code in Javascript a script that will convert a flat process filled
object into its matching gradient.