Dropshare for Mac 3.10 or newer:
The Share Extension of Dropshare for Mac enables you to upload files and images directly from other applications. In case Dropshare does not appear automatically in the Share menu of other applications, you can easily enable it manually:
Go to System Preferences, Extensions, and select "Dropshare - Share Menu" from the list of all third-party extensions. Dropshare will then be available in the Share menu of other applications.