report.cs

            Report report = new Report();
            report.Load(@"C:\digi\source\utils\project\web\apps\api\report1.frx");
            FastReport.Utils.Config.WebMode = true;
            report.SetParameterValue("param1", 23);

            if (report.Report.Prepare())
            {
                FastReport.Export.Pdf.PDFExport pdfExport = new FastReport.Export.Pdf.PDFExport();
                pdfExport.ShowProgress = false;
                pdfExport.Compressed = true;
                pdfExport.AllowPrint = true;
                pdfExport.EmbeddingFonts = true;


                MemoryStream strm = new MemoryStream();
                report.Report.Export(pdfExport, strm);
                report.Dispose();
                pdfExport.Dispose();
                strm.Position = 0;
                return strm;
            }
            else
            {
                return null;
            }