How raster and vector graphics work, their strengths, limitations, and best use cases.
Every digital image falls into one of two categories: raster (bitmap) or vector. Understanding the difference is fundamental to working with digital graphics.
Raster Graphics
A raster image is a grid of pixels — tiny squares of color. Every photograph is raster. Common formats: JPEG, PNG, GIF, WebP, BMP, TIFF. Raster images have a fixed resolution; scaling up causes blurring and pixelation.
Vector Graphics
A vector image is a set of mathematical instructions describing shapes. The rendering engine draws them at whatever resolution the output device needs — always perfectly smooth. Common formats: SVG, AI, EPS, PDF.
When Raster Wins
- Photography
- Complex natural imagery
- Screenshots
- Pixel art
When Vector Wins
- Logos at any size
- Icons and UI elements
- Typography (all fonts are vector outlines)
- Charts, diagrams, maps
- Print design at high resolution
- Animation and interactivity
Converting Between Formats
Raster to vector: Shape to Vector traces pixel boundaries into vector paths. Works well for flat-color graphics. Vector to raster: Export from any vector editor at any resolution — always lossless at the target size.