Question

I am trying to print .pdf and .tif files using C# in windows application.

Printing is done successfully, but my problem is Adobe reader is opening in background for pdf files and windows print dialogue opens for tif files.

Actually i will run my method using a service, so these process should occur silently. What can I do to avoid this?

Here is my code

public void PrintDocument(string filepath)
        {

            //PrintDialog pd = new PrintDialog();            
            printProcess.StartInfo.FileName = filepath; 
            //Also tried usecellexcecution=false;
            //Redirect=true; something like this
            printProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            printProcess.StartInfo.Verb = "Print";
            printProcess.StartInfo.CreateNoWindow = true;
            PrinterSettings setting = new PrinterSettings();
            setting.DefaultPageSettings.Landscape = true; 
            printProcess.Start();
            printProcess.CloseMainWindow(); 
        }

I have tried to use RawprinterHelper suggested in MSDN, but it prints junk characters.

Answer 1

Get the window handle of the pdf process and then hide it or use process class’s windowstyle to minimize it.

Yes it gets launched because you are using Process.Start.