IPad Retina Resolution - PPI issue

Hi All,
I am really struggling to get my head around what is going on in my document.
I am in process of creating a page for iPad. it only has to be a single PDF which will then go off into a magazine (publishing company will be doing this).
Now the iPads all have different resolutions and PPI abilities. The original iPad and iPad 2 are 1024px x 768px @ 132ppi and the iPad Retina is 2048px x 1536px @ 264ppi.
(See - http://www.apple.com/ipad/compare/ for specs).
Now my issue has arrisen after I have tried creating a document in inDesign with the settings of 1024px x 768px @72ppi (default & unchangeable ppi settings).
I create my image which ive made large enough & dense enough to ensure quality at the top end iPad. This image is at size 2172px x 1536px @ 528ppi (.
When I place the image into the document at its full size, it is tiny inside the document. You can see this in the attached screenshot.
Can someone please tell me what is going on, pixel wise and what I should be doing to create a document suitable for its prerequisites.
Many thanks,
Tim

Now my issue has arrisen after I have tried creating a document in inDesign with the settings of 1024px x 768px @72ppi (default & unchangeable ppi settings).
While placed images do have a pixel resolution, Indesign documents do not. So, when you make a new document with the Intent set at Web or Digital Publishing you get pixels as the initial measurement units, but you are free to change them after the doc is created.
For measurement purposes Indesign assumes there are 72 pixels in an inch—obviously that's no the case for most monitors and tablets. The Link panel's effective pixels per inch reading is relative to the page dimension in inches. So, if you accept the iPad 1024x768 preset and change the measurement settings to inches you'll get 14.22" x 10.66" almost twice the size of the iPad's physical dimensions.
If I scale up a 264ppi image to fill the page on a 14.22" x 10.66" page I get an effective ppi of 144, but when the page is eventually displayed on the smaller 7.7" x 5.8" iPad screen the effective res will go back up to 264ppi.

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Question about Apple's new iPad retina requirement.

Apple recently made it a requirement that apps support all retina displays for both iPads and iPhones.
What acceptable options are available in AIR for supporting the iPad Retina display and still meet Apple's new requirement?
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I've been working on a universal app using AIR 3.6 that works well in all iOS resolutions other than for iPad retina (2048x1536).
When building native support for the iPad retina resolution, the app performance is very poor (due to having to animate and manipulate such large bitmaps). The coding approaches that I've used are supposed to be good on performance, so I doubt that I can optimize things to the point where the performance would be acceptable using the larger art assets.
In comparison, when I use an older version of AIR (3.2) and let the iOS compatibility mode automatically scale up the app to fill the 2048x1536 screen, the performace of the app is just fine (and looks almost identical).
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Does anyone know if Apple will now accept an app that was built with iPad retina support disabled through this approach?
Another option that I've tried that may be a workable solution is :
During launch when 2048x1536 resolution is detected, the app loads all of the 1024x768 art assets instead and then scales up the app by a factor of two (using scaleX = scaleY = 2).
The above seems to generate acceptable performance. The artworks looks a little blurrier and less crisp using this approach due to the scaling, but is acceptable to me personally. As this is technically using "standard" resolution art assets and scaling them up, would taking this approach get rejected by Apple?
I'm open to any other options/approaches/suggestions to adding iPad retina support that would allow me to address the performance issues on iPad retina and still allow my app to get approved by Apple. I'm just a little bit confused on what constitutes an app having "iPad Retina" support. Does the app just need to be compiled with a newer version of the iOS SDK to get through the approval process, or does this mean something else?
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Seems like you have two options, if you are already scaling stuff down after launching at a higher res why not make it an option. Have a setting for "High Resolution" and one for "High Performance" the difference would is one would run in Retina mode and one would run in standard mode so users with iPad4 and iPhone5 could probably use the High Res but iphone 4 users can switch to the High Performance setting.
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<text xml:lang="fr">Sara Player</text>
<text xml:lang="de">Sara Player</text>
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Dropbox - 1.jpg
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This question was solved.
View Solution.

The issue is related to the privacy settings on ios 6. To resolve this go to settings on your device, then you should see a privacy section. In there go to photos and turn the eprint app on. This should work to allow you to see the photos.
Jon-W
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Please click “Accept as Solution ” on the post that solves your issue to help others find the solution.
Click the KUDOS STAR on the left to say “Thanks” for helping!

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Hello,
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I have used several different cameras, which probably have different native bit depths. I assume that Lr converts all RAW files to 16 bits, but the original/native bit depth still affects the quality, right? Therefore, it would be nice to be able to check the native bit depth of an image and e.g. compare it to an image with a different native bit depth.....
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IPad Retina Resolution - PPI issue

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