There are two image types you need to know about.
• Rasterized images (.JPG / .PNG)
• Vector images (.AI / .EPS / .SVG)
Rasterized images are made up of colored squares called pixels.
If you zoom in close enough at a rasterized image (Like a digital photo from your phone), it will look like a mosaic of squares.
- Easy to manipulate in Photoshop.
- Suitable for every purpose.
- Loses quality when scaled up.
- Large file size, even when optimized.
Vector images consist of points in space, connected to form shapes.
By coloring 2D points, lines and shapes you can create images without a lot of data.
- Hard to manipulate without some serious practice in serious software.
- Not suitable for photos or other realistic images.
- Scales without losing quality.
- Small file size.