Looks like you can upload a printable file from the workshop folder just like in the normal folder. I guess this can be done for family pictures, etc that you don't want anyone to comment on.
As long as there's a placeholder thumbnail you could upload a printable file.
I think the image may still show in your DPC Prints gallery when someone goes there ... that thumbnail is generated separately, directly from the print file.
People browsing DPC won't see it, but those viewing the print site probably will.
Yeah, you have to mark the individual images as hidden, as opposed to being inside a hidden portfolio folder (like Workshop). Such (printable) images won't show up when browsing/searching on dpcprints, but you can link directly to it.
