STEP 3 & FINAL - CHOOSE YOUR PREFERED FORMAT
Large Mobile Banner: 320x50 pixels (for mobile optimization)

JPG (JPEG) Format:
- Why: This is the most common format for photos and complex images. It offers good compression, resulting in smaller file sizes, which helps pages load faster. It's ideal for banners with photographic elements or gradients.
- Use Case: General web display ads, blog posts, websites.

PNG Format:
- Why: PNG supports transparency (which JPG does not).
- Use Case: Banners with transparent backgrounds, logos, text-heavy ads, ensuring sharp quality.

GIF (Graphics Interchange Format):
- Why: GIFs support animation!
- Use Case: Animated display ads, visually engaging web banners.