Keeping Photo Metadata intact

As we're trying out different methods of collecting a person's photos, it's become clear that there are some things that work and others that don't when keeping metadata intact.

Things that work:

• Computer to Dropbox
• Dropbox Uploader Mac app
• Dropbox website
• Add photos to your own account
• User adds photos through file request
• Computer to Google Photos
• Google Photos Uploader Mac app
• Computer to Amazon Cloud
• Amazon cloud uploader Mac app
• iPhone to Dropbox
• Dropbox App

Things that don't work:

• iPhone to Dropbox
• user adds photos through file request (mobile web).  Metadata is stripped out
• Downloading from Social sites
• Facebook strips metadata
• Instagram strips metadata

Here's a good reference as well:

http://www.embeddedmetadata.org/social-media-test-results.php