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Ability to watermark multiple photos at the same time would be a lifesaver for photographers. Check out SmugMug’s go to on this. Please incorporate same thing.
Yeah, adding my vote. I have seen a dozen threads requesting this on the community forums. Business don't have a problem watermarking files, plenty of software does this. They have a problem remembering to do it. Dropbox has an opportunity to solve that problem and reap the benefits.
What would be infinitely more useful would be if we could set a folder to apply a watermark to any files inside of it. Changing the parent folder's watermark would make the change to all files and subfolders in the folder.