Only works for new photos posted after you turn on this Applet and will skip any GIF posts. Be sure to create and choose the Dropbox/IFTTT/TumblrScreensaver folder in your screensaver setup. OSX: http://apple.co/2p7XmxK Windows: http://bit.ly/2qE6fPt
Explore more great ways to automate Dropbox and Tumblr (legacy)