Use .NET Visio API To read MS Visio VSD, VDX, VSS, VSX diagrams using C#. Export MS Visio digrams To PDF or image formats using C# in ASP.NET....Blog Home Read and Export MS Visio 2003/2007/2010 VSD, VDX, VSS...release supports reading MS Visio 2003, 2007 and 2010 diagrams...