Images on Shopify blogs should be sized at least at 300 pixels wide by 200 pixels high. The optimum size for images is 800 pixels wide by 600 pixels high.
Anything smaller than 300 pixels wide or larger than 800 pixels wide will result in decreased user engagement and decreased click-through rates.
When selecting images for your blog, it is important to consider the purpose of the image. Images that are used to sell products or services should be sized appropriately to maximize their impact.
Images that are used to capture and share information or highlight unique features of your products or services should be sized at a lower resolution in order to make them more user-friendly and shareable.
To ensure that your images look their best, use a resolution-optimized editor such as Photoshop or GIMP. When using these editors, be sure to save your images as PNG files with a resolution of 72 dpi to ensure the highest quality.