This topic show you how to Aspose.Diagram allows to convert Visio to PDF formats. Convert VSD, VSS, VDW, VST, VSDX, VSSX, VSTX, VSDM, VSTM,VSSM to PDF with a few lines of code....VSD diagram Diagram diagram = new Diagram ( dataDir + "ExportToPDF...); MemoryStream pdfStream = new MemoryStream (); // Save diagram...