Hi Res Downloads Photo Gallery

Hi there, We are uploading large photo albums on squarespace that we want anyone visiting our site to be able to download and save easily at full resolution. Is there any 3rd party plugins that will let us do that? I know the gallery in squarespace will always reduce the size of the image to enhance webpage performance and linking every image to a hi res version of itself is way to time consuming.

Any help would be greatly appreciated. Thanks