The Ideal size for images depend on the type of image:
- Product Image typically should be a minimum of 1000 X 1000 px
- Store banners width 1300 px X height 500 px. For mobile devices 650 px X 250 px
- Store Logos should be 250 X 250 px.
- Blog posts images 1000 X 650 px.
As per the product image format, png or jpeg are preferred as they allow for faster page loading.
For other types of images such as banners and images used in articles etc, webp format is a good choice because you can achieve the same image quality with a smaller size file.
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