Hi, 
I'm trying to print a drawing to a PDF file using the SolidWorks API like this:
 

PrintSpecification printSpec = (PrintSpecification)myDocumentModel.Extension.GetPrintSpecification(); printSpec.ConvertToHighQuality = true; printSpec.AddPrintRange(1, pageCount); printSpec.ScaleMethod = (int)swPrintSelectionScaleFactor_e.swPrintAll; printSpec.PrinterQueue = "Microsoft Print to PDF"; printSpec.PrintToFile