<a href="http:&#x2F;&#x2F;pondini.org&#x2F;TM&#x2F;Works3.html" rel="nofollow">http:&#x2F;&#x2F;pondini.org&#x2F;TM&#x2F;Works3.html</a> - seems like it. I&#x27;m not sure it&#x27;d survive Dropbox - maybe a Mac user can chime in here?<p>Edit: It seems perfect: <a href="http:&#x2F;&#x2F;blog.fosketts.net&#x2F;2011&#x2F;07&#x2F;05&#x2F;mac-dropbox-encrypted-volume&#x2F;" rel="nofollow">http:&#x2F;&#x2F;blog.fosketts.net&#x2F;2011&#x2F;07&#x2F;05&#x2F;mac-dropbox-encrypted-vo...</a><p>The closest for Linux would be ecryptfs, but I&#x27;m not sure if it splits images up.