Assume that you have a report in Microsoft SQL Server 2012 Reporting Services (SSRS 2012) or SQL Server 2014 Reporting Services (SSRS 2014), and you set the page orientation to Landscape mode. For example, you set the Width property of the report to 8.5 inches, and set its Height property to 11 inches. When you export the report to a Word document by using the default Word renderer, the Landscape setting is lost. Additionally, when you print the document, it's printed in Portrait mode. When you print preview it, the preview page shows the correct width and height that were set previously. However, the borders are clipped to Portrait mode.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.