Artstor just announced that with the latest system update users can now download individual images as JPGs – they are no longer zip files, which means you save a step.
The second bit of good news is that the embedded metadata function is now working, so that information travels with the downloaded image. You can view the metadata in a number of ways, e.g. Photoshop (File Info), the Photo Viewers built into Windows or Apple operating systems, or Windows Explorer.
Read more on the Artstor blog.