A vector image is a type of computer graphic in which visual images are created directly from geometric shapes defined on a Cartesian plane, such as points, lines, curves, and polygons. Vector images are created using mathematical formulas that establish points on a grid, rather than individual colored blocks, which means they can be infinitely adjusted in size without losing resolution. Vector graphics are an alternative to raster or bitmap graphics, with each having advantages and disadvantages in specific situations. Key features of vector images include:

• Scalability: Vector images can be scaled up or down without losing resolution, making them ideal for projects that require scalable graphics, including scalable type and text.

• Flexibility: Vector images are more versatile for certain types of tasks than raster images, as they can be resized without losing quality and can be used for a variety of promotional materials, from business cards to posters.

• File formats: The most common types of vector files are AI (Adobe Illustrator), EPS (Encapsulated PostScript), PDF (Portable Document Format), and SVG (Scalable Vector Graphics) .

Vector images are commonly used in graphic design, computer-aided design, and geographic information systems. They are particularly useful for creating logos, digital illustrations, and other graphics that frequently require resizing.