Adobe PDF Printer Doesn't Creating the PDF Files

No, I don't know how to report it. Is there any link where I can report the issue?

Edit:

I'm going to send a bug report

Thank you but it didn't work either. I'm not sure why this is happening. I'm in a great stress now, tried almost everything that I could but nothing help. Can you share any other solution?

Yes, the PrintToFile property is already has set to true. Below is the code snippet, I hope that may give some idea where the problem is.

        public static bool ExportSheetToPDF(Document doc, string path)

        {

            using (Transaction tx = new Transaction(doc)

            {

                tx.Start("Exportint to PDF");

                PrintManager pm = doc.PrintManager;

                pm.SelectNewPrintDriver("Adobe PDF");

                pm.Apply();

                pm.PrintRange = PrintRange.Current;

                pm.Apply();

                pm.CombinedFile = true;

                pm.Apply();

                pm.PrintToFile = true;

                pm.Apply();

                pm.PrintToFileName = path + @"\PDF\" + "abc.pdf";

                pm.Apply();

                SuppressAdobeDialogAndSaveFilePath(path + @"\PDF\" + "abc.pdf");

                pm.SubmitPrint();

                pm.Apply();

                tx.Commit();

            }

            return true;

        }

        // Add Registry Key to suppress the dialog box

        public static void SuppressAdobeDialogAndSaveFilePath(string value)

        {

            var valueName = @"C:\Program Files\Autodesk\Revit 2017\Revit.exe";

            var reg = currentUser.OpenSubKey(key, true);

            var tempReg = reg.OpenSubKey(valueName);

            if (tempReg == null)

            {

                reg = reg.CreateSubKey(valueName);

            }

            reg.SetValue(valueName, value);

            reg.Close();

        }

Thank you for your reply. The Revit API does allow us to export drawings in PDF if the save dialog box isn't suppressed. When the dialog box is suppressed by modifying the registry key, the process of exporting the PDF file doesn't get complete.