Why right-click-save gives you a blurry image
To keep the masonry grid fast, Pinterest renders thumbnails 236px or 564px wide. Right-click and Save Image As gets you exactly that thumbnail, which will look soft the moment you drop it into a layout. Pinterest actually stores several sizes per Pin, the largest usually 736px or the full uploaded dimensions. We request the largest available version — which is why the same Pin downloaded here and right-click-saved from the grid produce visibly different files.