Hello Ann, any image that is stored on the web in a public format is accessible to Google. We have no influence on Google indexing photos. Images posted to Pixoto, and any other photo-sharing site, find there way on to google images.
"No influence", eh? :lol: No so - I would have though your tech guys would know exactly how to prevent that. After all, the robots.txt file is how spiders have known what's available to index since well back in the day.
Oh, look, google even have a whole help topic on the subject: