Please help me way to add my logo or watermarks to my products photo

hi yes -is there a way to upload a different image for the zoom feature -no one likes to have big watermarks plastered all over their original art -so not having this on smaller thumbnails is really fin, we really care about people downloading higher resolution images -if Shopify provided a way to upload 2 images one low rez and one high with a watermark that would be very helpful. Anyone know if this is possible?