The only official way to use Adobe Illustrator for free is through the provided by Adobe .
Uses a color theme picker to grab color palettes from images and apply them to your vectors instantly.
If you are a student or teacher, you can get Adobe Illustrator as part of the Creative Cloud "All Apps" plan at a discount of over 60-70% . Key Features of Adobe Illustrator 2021
The 2021 release (versions 25.x) introduced several tools designed to speed up vector workflows:
