This technical tip shows how .NET developers can export Microsoft Visio diagram to PDF inside their own applications using Aspose.Diagram for .NET. Aspose.Diagram for .NET allows reading and creating diagrams as well as lets developers export diagrams to a variety of formats: XML formats, image formats, HTML, SVG, SWF and PDF. This tip explains how to export a Microsoft Visio diagram to PDF using Aspose.Diagram for .NET. Use the Diagram class' constructor to read the diagram files and the Save method to export the diagram to any supported image format. The image below shows the VSD diagram that the code snippets below export PDF. You can use other diagram formats (VSS, VDX, VST, VDX, VTX or VSX) as well.