When I click the AddThis Pinterest button, the box opens mid-screen, offereing a variety of images from my page. Cool. However, among those offered are grainy, enlarged portions of nav buttons, banner ads, and other images that are relevant. On the same, page the Favorites Bar PinIt button (from Pinterest itself) does it "correctly", meaning it only offeres meaningful images; no nav buttons included.
How can I exclude selected images from the AddThis Pinterest widget box?
Thanks in advance to anyone who can help.