I have many old photos that my parents recently gave me and I'd like to scan them to preserve them better than if I just kept them in their paper format. The problem I'm finding is that many of them are in terrible shape. This has become readily apparent by looking at the scanned versions. I didn't realize this before the scan, but the digital versions have dust showing on them and they seem to be all scratched up. Is there anything I can do about this? Can I edit these photos in any way now that they're scanned?