I'm using the Magento Store in version 220.127.116.11. I have a question about the product images. Is it necessary to optimize the product images before uploading or does optimize Magento the corresponding image sizes depending on the application screen size automatically?
Hello Image optimization you Magento Provide the good functionality for
resize() image so you can use that as per your requirement on when you want to use the Product Images.
<?php $img=Mage::helper('catalog/image')->init($_product, 'small_image')->keepFrame(true)->resize( $imgSizeWidth, $imgSizeHeight ); ?>
small_image has two more property like
keepFrame(true) means it will remove the white background when Image is crop.
resize(width,height) means specify height & width.
For product Listing page refer the
For Detail Page refer
catalog/product/view/media.phtml file in your Theme folder.
Hope you got proper answer.