Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Creating iPad Background Images
Your new iPad has arrived and you want to use your own desktop image. In this tutorial I am going to show you how to create a desktop background that works in both landscape and portrait orientation.
Working on the concept that square images will work on all rotations I am going to create a background that is 1024×1024 (although any square dimension around this should work).
Step 1 : Chose your Image
In your favourite photo editor, I am using Adobe Lightroom 2, click on the image and resize it manually or using the custom crop tool. In Lightroom I set the dimension to be 1 to 1 to make the square and then I am export it at any size.
Step 2 : Set the Resolution
Most digital cameras offer massive megapixels and therefore massive dots per inch. To ensure you keep the file size of your background down set the dpi to 138. In Lightroom you do this at the export stage (file>>export).
As you can see when the file is exported it comes in at only 80K and being square it should look fine in both landscape and portrait orientation.
I am not sure if anyone wants to try this image as their desktop background or not but here it is, let me know what you think.
Click on the image for a full size view. If you want to see a screenshot of it in action click here.
Image is provided courtesy of FlixelPix and is for personal use only. The photo should not be sold or redistributed without permission.
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