The company announced its most recent iPads around this time last year. The announcement included a smaller version, called the Mini, for the first time.
New iPads would get Apple's latest operating system for mobile devices, iOS 7. The invitation sent Tuesday includes a graphic that mimics the colour scheme in iOS 7.
Next Tuesday's event will take place at the Yerba Buena Center for the Arts Theater in San Francisco, a venue Apple has often used in the past.
It follows last month's release of new iPhones with iOS 7 — the 5S model with a fingerprint sensor and a cheaper, 5C model with a variety of colour options.
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