2 Milllion Pixels

Hi. After uploading my ePub file using iTunes Producer, I got an email from apple:

Your book, vendor ID: ... , could not be delivered. The following images are larger than two million pixels and must be resized:

I had a look at all my images that I'm using inside my ePub. No one is even close to two million pixels. Anyone has an idea what could be the problem?

I'm using the latest version of Pages to create the ePub file.

Thanks!