Introduction

When receiving files from a designer, it can be confusing to know which file to use and when. A folder full of logos, images, and design assets may include several different file types, each created for a specific purpose.

Understanding the difference between file formats can help you choose the right file for websites, printing, social media, and other brand materials.

Not All Files Work the Same Way

Design files are created differently depending on how they will be used. Some files are built to maintain quality at any size, while others are optimized for quick loading and easy sharing.

The most common file types used in visual design fall into two categories: vector files and raster files.

Vector Files

Vector files are created using mathematical paths instead of pixels. This allows them to be scaled up or down without losing quality.

These files are commonly used for logos, icons, illustrations, and other brand assets that need to work across many sizes.

Common vector file types:

SVG

Best for websites and digital applications. SVG files remain sharp at any size and are commonly used for logos online.

AI

The original editable file created in Adobe Illustrator. Designers use AI files to make changes to logos, illustrations, and other vector artwork.

EPS

A widely supported vector format often used for professional printing and production.

Raster Files

Raster files are made up of individual pixels. Because they have a set resolution, enlarging them too much can cause them to become blurry or pixelated.

These files are commonly used for photography and digital graphics.

Common raster file types:

PNG

Best for digital use when transparency is needed, such as placing a logo over a colored background.

JPG

A compressed image format commonly used for photography and websites where smaller file sizes are important.

PDF

A versatile format used for both digital sharing and printing. Depending on how it was created, a PDF may contain either vector or raster elements.

Which File Should You Use?

When in doubt:

Need to print a logo or create large signage?

Use a vector file such as AI, EPS, or SVG.

Need a logo for a website or social media?

Use SVG or PNG.

Need to share a document or design proof?

Use PDF.

Need to upload a photo online?

Use JPG.

Conclusion

Design file types exist because different formats are better suited for different situations. Having the right file ensures your brand looks consistent, whether it appears on a website, business card, or large-scale print material.

If you are unsure which file to use, it is always better to ask before converting or editing an asset. Using the correct file from the beginning helps protect the quality of your brand.