If dropbox then tumblr

Connect

Put photos in tumblr folder

If

Dropbox icon
New photo in your folder

This Trigger fires every time a photo is saved in the folder you specify. NOTE: will process up to 15 photos per polling period.

Then

Tumblr (legacy) icon
Create a photo post

This Action will create a photo post on your Tumblr blog.

Fewer details

Discover more time saving integrations for Dropbox and Tumblr (legacy)