I just bought a new iPad. I bought also app " Star walk". I like the app. The problem I have is: When I e-mail pictures (of stars, sky, ..etc.) to my self from my ipad, I store them in my computer (windows 7) in (My Pictures) folder. But the images appear blank under the name "file". All my pictures are in JPEG format. How can I convert pictures from iPad into JPEG so that I can view them or post them on my blog?