The link to the page with an example of an image I am having trouble with is:
http://keepfoodsimple.com.au/?product_cat=books
Yes I am using WooCommerce.
Since putting up my post yesterday I have had a play and changed a couple of settings:
1) WooCommerce – Settings – Display – Product Images. I changed the Product Thumbnails to 300 x 300. All other images are set at 300 x 300.
2) Media – settings – image sizes. I changed the thumbnail size to 1200 x 1200.
The image currently on the website on the link is around 1300 x1300. Its the best I could get it looking but the image is cropped. When I view it in the dashboard it looks fine but once it goes live, its cropped.