Can I edit an EPS?ĮPS files, if opened in a vector-based program such as Adobe Illustrator, Corel Draw, will have the ability to be resized without loss of quality, and will also be able to be easily edited and manipulated. That’s basically how you edit EPS files in Illustrator without losing quality like you would a JPEG. Just use the Selection Tool (V) or the Direct Selection Tool (A) to click and select the art before dragging it to change the shape or adjust the color using the swatch panel. What is the difference between AI and EPS?.How do I unlock an EPS file in Illustrator?.