How do I compress PDF files using Acrobat SDK?

have a web service created in a .net environment that examines existing pdf files in a staging directory prior to sending them over the wire using FTP.

Part of that process requires that I rename individual files in order to associate them with a particular batch.

I also have a requirement to reduce the size of individual files as much as possible in order to reduce the traffic going over the line.

So far I have managed about a 30% compression rate by using an open source library (iTextSharp).

I  am hoping that I can get a better compression rate using the Acrobat SDK, but I need someone to show me how, hopefully with an example that I can follow.

The following code snippet is a model I wrote that accomplishes the rename and file compression...

            const string filePrefix = "19512-";

            string[] fileArray = Directory.GetFiles(@"c:\temp");

            foreach (var pdffile in fileArray) {

                string[] filePath = pdffile.Split('\\');

                var newFile = filePath[0] + '\\' + filePath[1] + '\\' + filePrefix + filePath[2];               

                var reader = new PdfReader(pdffile);

                var stamper = new PdfStamper(reader, new FileStream(newFile, FileMode.Create), PdfWriter.VERSION_1_5);

                int pageNum = 1;

                for (int i = 1; i <= pageNum; i++) {

                    reader.SetPageContent(i, reader.GetPageContent(i), PdfStream.BEST_COMPRESSION);

                }

                stamper.Writer.CompressionLevel = PdfStream.BEST_COMPRESSION;

                stamper.FormFlattening = true;

                stamper.SetFullCompression();

                stamper.Close();

          }

Any assistance is appreciated.