Adobe Illustrator is a vector graphics editor

Illustrator a vector graphics software used worldwide by designers of all types who want to create digital graphics, illustrations, and typography for all kinds of media: print, web, interactive, video, and mobile.

What are vector graphics and why are they important?

Vector graphics are one of the two most commonly used graphic formats in design, the other being bitmap (or raster) graphics.

Vector graphics, like those created with Illustrator, are "resolution independent," which means they can be resized infinitely with no loss of quality. For example, the same logo design created with Illustrator can be used on a business card or an outdoor billboard, maintaining the accuracy and detail of the original design.