Affects: InDesign,OS: iPad 3+ and iPhone 4+
In InDesign, if you have an image box 500px x 500px, the image that you import must sit in the box at 50% or less to get the retina display script to work. So you have to make sure your image is at least double the size of the box. So, in this example if the image is 1002px x 1002px, the image will sit in InDesign at 49%.
Kindly visit the link: http://docs.appstudio.net/pages/viewpage.action?pageId=8093835 to know more about the retina display and to download the sample also.