I'm writing a report and a lot of the images are fairly big, and when an image is too big to fit on a page, it starts a whole new page. I was wondering if it is possible to have word split images automatically over page breaks so you don't have big white space everywhere.
Not as far as I know.
You can scale the images in Word to ensure they fit on a single page, but the default it to import the image at 1:1.
If the image is truly too big to fit on a single page then you'll need to split it in a paint package (Paint.NET for example) and insert it in sections.