How To Design An Excellent iPhone, iPod and iPad Case
Designing and uploading your iPhone or iPad case is a fairly
straightforward process but we've whipped up a quick list of
considerations so you can ensure your designs look tip top. The
first thing you'll need to do is download the template. Both
templates are available on the upload screen when you add a new
work. Don't forget to delete the guidance layer once you've read
all the important information on it.

Orientation.
There's no hard and fast rules about the orientation of your design but keep in mind that the iPhone and iPad case previews on Redbubble are portrait. And when someone's actually using the iPhone for telecommunications (how old fashioned) they'll tend to hold their iPhone in this manner. So unless your design calls for something out of the ordinary, we'd suggest using portrait orientation when positioning your design.

Bleed.
Our templates are designed to be adaptable to future tweaks and changes to the iPhone and iPad's design. So unless Apple bring out a new design that is triangular, or the size of a small house brick, you shouldn't need to rework your designs each time a new version is released.
When placing your artwork on the template it's important you fill the whole area with your design - right to the edges. This will ensure there's enough design to wrap around the edges of the case and to take into consideration any future design changes or updates.
For this same reason, we'd advise against using borders, shading or elements that are designed to sit right on the edge of the front of the case. All it takes is a new design that differs in size by 2mm and those elements may not appear the way you intended.

If you’d like to learn all about iPhone and iPad cases, what they’re made of, how they’re printed, what they had for breakfast last Tuesday and other useful information, head on over to our iPhone and iPad product pages for more.
http://www.redbubble.com/products/ipad-cases
http://www.redbubble.com/products/iphone-cases
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