Hello,
In order to settle the issue, navigate to Appearance – > Customize -> WooCommerce -> Product
Image and find the size option for product page image as well as images in a grid:
Main image width – Image size used for the main image on single product pages. These images will remain uncropped. Image width used in demo sites are: 600px;
Thumbnail width – Image width used for products in the catalog, Image width for the catalog is 350px;
Thumbnail cropping checkboxes:
1:1 – Images will be cropped into a square;
Custom – Images will be cropped to a custom aspect ratio, for example, 4:3 or there is the option to insert the aspect ratio
Uncropped – Images will display using the aspect ratio in which they were uploaded
there is no required or recommended image size for product or other purposes. Image should be big enough to have a nice view. Just for information we provide images sizes applied in our demo:
Product main image: width: 800px; height: 1200px;
Blog post: width: 1024px; height: 720px;
Page title background: 1200px; height: 400px;
Best Regards
.
