How to set document types in Xcode 4.2?

Question

I have an application for iPhone, and I would like it, so when a user clicks on a .pdf file as an email attachment, my application is one of the options for opening it. After some research, it seems that I need to add a document type to info.plist. The problem is that I cannot find ANY tutorial explaining how to use the new type of GUI document:

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Can someone help me?

Answer 1

This function of the "Document Types" editor can be so new (it was introduced in 4.2) that the documentation layer did not manage to write anything about it.

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Answer 2

, . SO-, , info.plist, Xcode 4.5.1:

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Answer 3

Just set the "Name" field to "Portable Document Format" and the type field "com.adobe.pdf".