In the Dropbox app, there is an Upload tab to extract photos from your phone. Unfortunately, you have to manually select each photo for upload; there is no "upload all" option. If you are importing a large amount of photos, I recommend just connecting your phone to the computer and transferring them that way (more time efficient). Then if you're planning on storing them in your Dropbox account online, you can easy upload all of them from your computer. Hope that helps!