Aspose.Diagram for .NET – A Powerful Visio Diagraming API to create, edit, manipulate, & convert Visio Files to XPS, HTML, SVG, XML, images or Pdf Formats. Add text, images and shapes....Visio files to XPS, HTML, SVG, SWF, XAML, images or PDF formats...converting them to different formats like VSDX, VSX, VTX, VDX, VSSX...