By default the thumbnails for products are created automatically from the detailed images.
In order to upload the thumbnails manually:
- Log in to the administration panel of your store.
- Open the Catalog tab.
- Click on the Products link.
- Select the desired product by clicking on its name.
- Click on the upload them manually link on the General tab of the Editing product page.
- Upload a file in the File option in the opened form and fill in the Alternative text: input field.
- Click on the Save button.
In order to change the thumbnail size and appearance settings:
- Log in to the administration panel of your store.
- Open the Administration tab.
- Click on the Settings link.
- Click on the Thumbnails link.
- Specify the neccessary thumbnails settings.
- Click on the Save button.
NOTE: After changing these settings you will need to clean up the thumbnail cache in order to re-generate the automatically created thumbnails. In order to do it open this link in your browser: http://www.your_domain.com/admin.php?ct where www.your_domain.com is the address of your store and where admin.php is a script file for the administration panel of your store that was renamed for security reasons. Before cleaning the thumbnail cache you should be logged in to the administration panel of your store.
Detailed pictures are displayed in the View larger image window and are stored in the images/detailed directory on the server, created thumbnails are displayed on the product details page and are stored in the images/thumbnails directory. If you add additional images for the product, additional small thumbnails are created and displayed under the main image on the product details page, they are also stored in the images/thumbnails directory.