Click on the sharing icon from any of the four panels:
Click on either the Facebook or Pinterest icon:
Swift Galleries will prepare the image for you and then pop open a new window for sharing (this is a requirement from Pinterest and Facebook).
Note: If you do not see a popup, check your browser for any popups that were blocked. You may choose to only allow this one time popup or permanently allow popups from Swift Galleries. We recommend that you do so as this is the only place we use a popup window (we hate them too!).