Q: how can you combine itune library into one main user

Hey simba4393,

I found the following information about merging multiple Apple IDs into a single Apple ID:

Apple IDs cannot be merged. You should use your preferred Apple ID from now on, but you can still access your purchased items such as music, movies, or software using your other Apple IDs.

 

from: Frequently asked questions about Apple ID

http://support.apple.com/kb/HT5622

However, this might help you out:

I have purchased music, apps, or books with multiple Apple IDs. How can I get all of this content onto my iOS device?


First, you need to copy all of your purchased content so it is on the same Mac or PC with iTunes. This computer should be the one you sync your device with. For more information on how to move your content, see these articles:

• Mac:  iTunes for Mac: How to copy purchases between computers
• PC:  iTunes for Windows: How to copy purchases between computers

 

Next, authorize your computer to play content with each Apple ID in iTunes. Once your computer is authorized for all your content, it can be synced to your iPhone, iPad, or iPod touch.

 

from: Using your Apple ID for Apple services

http://support.apple.com/kb/HT4895

Welcome to Apple Support Communities!

Have a great day,

Delgadoh