Is there a way to disable iCloud documents only
Having Documents &amp; Data active doesn't mean that your documents get saved to iCloud. Some applications might choose to store settings and data that could be shared between your devices. If you disable Documents &amp; Data you disable this possibility.

You can always check your iCloud account if there are any documents already saved. Go to 'System Preferences -> iCloudand clickManage`. You can here see what applications that are using the storage.




You can see that in my case I have documents from Pages and TextEdit. I have chosen to save them there. It's not anything that your computer do automatically.

I'm myself also using Dropbox for documents but I really see no reason to deactivate iCloud Documents &amp; Data