Image Size and Type
As a best practice, you should standardize the size of your images so they appear at the highest
possible resolution. A single product image can be displayed in several different sizes
throughout your catalog. In addition to the main image on the product page, there are smaller
images and thumbnails.
Image types are used in different places in your catalog. If you have only one product image,
you can use the same image for each type. If you do not assign an image to each type, a
placeholder image is used to mark its place in the catalog.
To configure product images:
1. On the Admin menu, select System > Configuration. Then in the panel on the left under
Catalog, select Catalog.
2. Click to expand the Product Image section, and do the following:
a. In the Base Image Width field, enter the maximum width that the base image is to be
b. In the Small Image Width field, enter the maximum width that the small image is to be
3. When complete, click the Save Config button.