What is the definition of vector graphics?

Vector graphics are images defined by mathematical equations (paths, curves, geometric shapes) rather than a grid of coloured pixels.

When you zoom in on a regular photograph (raster/bitmap), you eventually see individual square pixels and the image blurs because a bitmap is a fixed grid.

A vector image stores instructions: "draw a circle of radius 50 at position (100, 100) in red." No matter how large you scale it, the computer recalculates and draws a perfect, sharp circle. No pixelation.

Formats: SVG (web), AI (Adobe Illustrator), PDF (can contain vector content)

Best uses:

• Logos (must look sharp from business card to billboard)
• Icons
• Illustrations and diagrams
• Typography and technical drawings