Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, Pdf, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....Hide ] Change a Visio Page Layout to Portrait or Landscape Aspose...Visio pages on saving diagram to PDF, HTML, Image (PNG, JPEG, GIF)...