Some newer Android devices can save photos in a RAW file format. These are higher quality images, but not suitable for posting on the web. Use a program, such as Snapseed, to edit and convert your photos to a more common file format (JPG or PNG) that other applications can use.
https://play.google.com/store/apps/details?id=com.niksoftware.snapseed&hl=en
Ah, found your reply at last. Thank-you, I'll try that.