When I create a file on my Mac and save it to Dropbox, does it take up space on my local HD? My local hard drive is getting full and one of the culprits is apparently the files I have saved to Dropbox. It struck me as odd that it would duplicate like that. I thought I could save it to Dropbox instead of locally, not in addition to locally. Can I free up HD space by deleting a file, or does that delete it from Dropbox in the cloud as well? If that's the case, the value of having storage in the cloud is diminished.