Have you ever tried to enlarge a logo and ended up with a blurry mess? Or sent a file to print, only to have it come back pixelated?
This usually comes down to one simple file issue: vector vs. raster artwork.
Once you understand the difference, it becomes much easier to choose the right file for web, print, and branding projects.
First, What Is Vector Artwork?
Vector graphics are not made from pixels. They are built from mathematical paths, including lines, curves, and points.
Because of that, they can be scaled up or down without losing quality. A vector logo will stay sharp whether it appears on a business card, a storefront sign, or a billboard.
Key Characteristics
- Infinitely scalable (no loss of quality)
- Lightweight file sizes
- Crisp, clean edges
- Easy to edit colors and shapes
Common Vector File Types
- .AI (Adobe Illustrator)
- .EPS
- .SVG
- .PDF (vector-based)
Real-world example: Your company logo should always be vector.
What Is Raster (Non Vector) Artwork?
Raster images are made from a grid of tiny colored pixels, almost like a mosaic.
They are great for showing detail, especially in photos, but they do not enlarge well. Stretch a raster image too far and the pixels start to show, which makes the image look blurry or blocky.
Key Characteristics
- Resolution-dependent
- Loses quality when resized
- Excellent for detail, textures, and gradients
Common Raster File Types
- .JPG / .JPEG
- .PNG
- .GIF
- .TIFF
- .PSD (Adobe PhotoShop)
Real-world example: Product photos, website images, and social media graphics are usually raster files.
Vector vs Raster — Quick Comparison
| Feature | Vector Artwork | Raster (Non-Vector) Artwork |
| Built From | Mathematical paths | Pixels |
| Scalability | Infinite (no quality loss) | Limited (pixelation occurs) |
| File Size | Usually small | Can be large at high resolution |
| Best For | Logos, icons, illustrations | Photography, complex imagery |
| Editing | Easy to edit individual elements | Requires pixel-level editing |
| Resolution | Resolution-independent | Resolution-dependent |
| Common Tools | Adobe Illustrator, CorelDRAW | Photoshop, GIMP |
| Print Quality | Excellent at any size | Depends on DPI (typically 300 DPI @ 100%) |
| Web Use | SVG for responsive graphics | JPG/PNG for images |
Why This Actually Matters: Scaling Example
The customer does not have the logo file and has requested that you retrieve the logo from their website.
Vector Image (Best Case)
- The customer requires the image to be enlarged
- After enlargement, the edges remain sharp
- Logo has clean lines and no distortion
Raster Image (Common Problem)
- The customer requires the image to be enlarged which lowers the file's resolution
- After enlargement, the logo appears blurry
- Logo has visible pixels
That difference between vector and raster images can make the final design look polished or amateur.
Resolution in Action: Low vs High Raster Quality
When you are working with raster images, resolution matters a lot.
Low Resolution (72 DPI — typical for web)
- Fast loading
- Poor for printing
- Pixelation becomes obvious when enlarged
High Resolution (300 DPI at 100%, print standard)
- Smooth gradients
- Sharp details
- Ideal for professional printing
In general, more pixels give you more detail and better print quality. It is important to note that 300 DPI should be the resolution at final print size. Scaling a 300 DPI logo to 200% will reduce the resolution to 150 DPI.
When Should You Use Vector Artwork?
Choose vector when you need:
- Logos and branding assets
- Icons and UI (user interface) elements
- Typography-heavy designs
- Large-format printing (banners, signage, billboards)
- Graphics that need to scale across mediums
Think of vector as the flexible format you can use again and again.
When Should You Use Raster Artwork?
Choose raster when you need:
- Photographs
- Detailed imagery
- Complex textures (like shadows, lighting, gradients)
- Website visuals and social content
If realism and detail are the priority, raster is usually the better choice.
Recommended Specs to Avoid Problems Later
For Vector Files
- Save master files as: .AI or .EPS
- Export for web as: .SVG
- Convert fonts to outlines before sharing (keep a copy before converting for future edits)
- Keep paths clean and organized
For Raster Files
| Use Case | Resolution (DPI/PPI) | Format | Notes |
| Web | 72–150 PPI | JPG, PNG | Optimize for fast load |
| 300 DPI | TIFF, PDF | Use CMYK color mode, resolution at 100% | |
| Large Format | 150–300 DPI | TIFF, PSD | Depends on viewing distance |
| Social Media | Platform-specific | JPG, PNG | Follow platform size guidelines |
Common Mistakes to Watch For
- Using a JPEG logo for print: blurry edges
- Enlarging low-res images: pixelation
- Saving everything as PNG: unnecessarily large files
- Ignoring RGB vs CMYK: colour surprises in print
Can You Convert Between Them?
- Raster → Vector: Possible (via tracing), but usually imperfect unless traced by an experienced graphic designer.
- Vector → Raster: Easy. Export it at the size you need.
Tip: Create logos in vector format first whenever possible.
Final Takeaway
- Use vector for artwork that needs to scale.
- Use raster for images that need rich detail.
Get that right, and you will prevent many of the most common design-quality issues before they happen.
