Q: How can I tell which of my photos, videos, and albums are sync'd to Photoshop.com?
A: In your Elements Organizer, go to Edit>Preferences>Backup/Synchronization. You’ll be able to see which albums are selected for synchronization. In many cases, by default, your entire catalog (all your assets) is synchronized to Photoshop.com.
You can also see everything that is synced on Photoshop.com. Select “Photoshop Express Organizer” under the “Online Tools” menu.