Vector vs. Raster: The difference explained
There are two types of digital images: vector images and raster images (also called bitmaps). Understanding this difference is crucial for professional use of your logo.
Vector image
- Based on mathematical formulas
- Infinitely scalable without quality loss
- Small file size
- Editable (colors, shapes can be adjusted)
- Ideal for logos and illustrations
Raster image
- Made up of pixels (small squares)
- Loses quality when enlarged
- Larger file size at high resolution
- Difficult to modify
- Suitable for photos
How does a vector image work?
A vector image doesn't consist of pixels, but of mathematical formulas that describe lines, curves, and shapes. When you enlarge a vector image, these formulas are recalculated, keeping the image always sharp.
Imagine drawing a circle. In a raster image, this circle is stored as thousands of small colored squares. In a vector image, only this is stored: "draw a circle with center X,Y and radius R". No matter how large you make the circle, the computer always draws a perfect circle.
Did you know?
A 10KB vector logo can be printed on a 10-meter-wide billboard without losing a single pixel of quality!
When do you need a vector file?
A vector version of your logo is essential for:
Print materials
Business cards, brochures, flyers, posters, and all other printed materials
Signage & Advertising
Storefront signs, vehicle wraps, banners, billboards, and illuminated signs
Embroidery & Textiles
Corporate clothing, caps, bags, and other textile products
Digital applications
Websites, apps, presentations, and social media (in high quality)
Common vector formats
The most commonly used vector formats are:
The professional standard format, editable in Adobe Illustrator
Universal format, compatible with almost all graphic software
Web-friendly format, ideal for websites and apps
Can contain vector data, widely supported