Here is an unknown option of Word that allows you to create pages of different sizes within the same document (e.g., A4 portrait with A3 landscape) and this, in a few moments.
This tutorial also works under Word 2007.
Start by opening Word 2010. Generate text automatically by typing:
and do Entry.
Then, under the tab Layout, click on the small arrow at the bottom right of the module Layout.
On the tab Paper, select the paper format using the drop-down list
and, choose where to apply this format (see capture):
To choose the orientation of the paper, then click on the tab Margins and click on Portrait or Landscape.
Again, it will be necessary to choose where to apply this layout. Click on OK to validate. Here is an example of the result, with a page in A3 format in landscape and a page in A4 portrait format.
A practical feature that deserved to be highlighted: it’s done now!