Vector vs Raster Graphics: What's the Difference?
The two fundamental types of digital graphics — and exactly when each one is the right choice for your project.
How Vector Graphics Work
Vector graphics store images as mathematical instructions — 'draw a circle here', 'fill this region with red', 'draw a curved line from point A to point B'. The rendering engine calculates what pixels to draw at any given display size. This means vectors are resolution-independent — always sharp.
- Common vector formats: SVG, PDF, EPS, AI (Adobe Illustrator), DXF
- Best for: logos, icons, illustrations, diagrams, charts
- Editable: paths, colors, and shapes can be modified precisely
- File size: small for simple graphics, large for complex illustrations
How Raster Graphics Work
Raster graphics store images as a grid of pixels. Each pixel has a fixed color value. The image is sharp only at its native resolution — scale it up and you see the individual pixels as blur or jaggedness.
- Common raster formats: PNG, JPEG, GIF, WebP, BMP, TIFF
- Best for: photographs, complex textures, screenshots, video frames
- Editing: pixel-level manipulation in Photoshop, GIMP
- File size: depends on resolution — high-res images can be very large
Vector vs Raster Comparison Table
A direct comparison across the criteria that matter most for design and development decisions.
| Criterion | Vector | Raster |
|---|---|---|
| Scalability | Infinite — always sharp | Limited — blurs when enlarged |
| File size (logos) | Very small (2–20 KB) | Medium to large (50 KB–2 MB) |
| File size (photos) | Very large (impractical) | Efficient (JPEG compression) |
| Editability | Shapes and paths editable | Pixel-level editing only |
| Animation | CSS/JS animation native (SVG) | Frame-by-frame (GIF, APNG) |
| Browser support | SVG — universal | PNG/JPEG — universal |
| Print quality | Unlimited DPI | Fixed DPI — must be high enough |
When to Use Vector
Vector is the right choice when the graphic will be used at multiple sizes, when it needs to be editable, or when file size matters for simple graphics.
- Company logos — used from business cards to billboards
- Website icons — different sizes, dark/light mode color switching
- Print design — brochures, banners, signage
- Cricut and laser cutting — vector paths required
- Maps and diagrams — scalable without quality loss
When to Use Raster
Raster is the right choice for photographic images, complex textures, and cases where photorealism matters.
- Product photography
- Social media images with complex backgrounds
- Screenshots and screen recordings
- Medical and scientific imaging
- Video game textures
Frequently Asked Questions
Can I convert raster to vector?
Yes — this is called vectorization or image tracing. Tools like our converter, Illustrator's Image Trace, and Inkscape's Trace Bitmap automate this. Results are best for simple graphics with flat colors.
Is PDF vector or raster?
PDF can contain both. A PDF exported from Illustrator contains vectors. A PDF created by scanning a document contains raster images. Open in Illustrator to determine which type your PDF uses.
Are fonts vector or raster?
Fonts are vector — stored as outlines (paths) that render sharply at any point size. This is why digital text is always crisp regardless of display size.
Why does raster look fine on screen but bad in print?
Screens display at 72–96 DPI. Print typically requires 300 DPI. A raster image that looks fine at screen resolution is too low-resolution for print at the same physical size.
What software creates vector graphics?
Adobe Illustrator, Inkscape (free), Figma, Affinity Designer, CorelDRAW. For web, SVG can also be written by hand or generated by JavaScript libraries like D3.js.
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