On 10/2/14, Brion Vibber <bvibber@wikimedia.org> wrote:
> When exposing original-size or otherwise huge file versions *for download*
> when they're not intended to be viewed in browser, it may be wise to use
> the 'Content-Disposition' HTTP header, as we do for XML output from
> Special:Export.
>
> This should force most browsers to show a download dialog instead of
> loading the giant file inline; you can then take your mega-image and stick
> it in Photoshop or Gimp or whatever if you really wanted it (such programs
> are optimized to work with huge files, while browsers are most emphatically
> *not*).
>
> Of course this may mean we need to either filter the file through PHP to
> add headers (scary!) or have a second "downloadable" URL where the swift or
> caching infrastructure adds the headers.
>
> -- brion

That's already a thing:
https://upload.wikimedia.org/wikipedia/commons/7/70/Example.png?download

--bawolff

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