I would like to be able to include large-scale images with my Word 2010 documents. For example, a diagram produced as an A3 landscape image. How can I include it with the document, without shrinking it down to fit the A4 portrait document (eg, having it so that there's a "click to enlarge" function)?
There is no such feature in Microsoft Word, however you can insert a section break and make that particular page with the image a different size from the rest of the document. Therefore you can resize the page to A3 and insert the image as full size without disrupting the rest of the document.