People, who take pictures, might not realize that smartphones, digital cameras often record all sorts data about how, when, and even where in some cases a picture was taken. Many cameras record this information as meta-data that is embedded in image files in a digital format called "Exif Metadata" as discussed in:
Tools for Managing EXIF Data of your Images http://www.labnol.org/software/exif-data-editors/14210/ Exchangeable image file format http://en.wikipedia.org/wiki/Exchangeable_image_file_format Also, the EXIF Data might record when and how it was modified depending on the software used. If you want to see want image data is embedded in yours or another person's picture, there are various Exif Viewers, both online and available as software that can be used to extract this data. Even if you are not interested in this data, there are people and companies that are examining the pictures that you and other people posted to the Internet using it for their own purposes. If you have a smart phone or camera with a built-in GPS, it is scary what people can find out you and where you have been. Some online Exif Viewers are: 1. ExifViewer.org - http://www.exifviewer.org/ 2. Jeffrey's Exif viewer - http://regex.info/exif.cgi Yours, Paul H. ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
