pdf - Print always take documents folder file path instead of custom -

i using this print existing pdf documents taking c drive documents folder create file not path given me. either don't know process or may issue in code can me understand this.

code:

namespace printpdffile {  public class rawprinterhelper  {  // structure , api declarions:  [structlayout(layoutkind.sequential, charset = charset.ansi)]  private class docinfoa  {  [marshalas(unmanagedtype.lpstr)]  public string pdocname;  [marshalas(unmanagedtype.lpstr)]  public string poutputfile;  [marshalas(unmanagedtype.lpstr)]  public string pdatatype;  }   #region dll wrappers  [dllimport("winspool.drv", entrypoint = "openprintera", setlasterror = true, charset = charset.ansi, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool openprinter([marshalas(unmanagedtype.lpstr)] string szprinter, out intptr hprinter, intptr pd);   [dllimport("winspool.drv", entrypoint = "closeprinter", setlasterror = true, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool closeprinter(intptr hprinter);   [dllimport("winspool.drv", entrypoint = "startdocprintera", setlasterror = true, charset = charset.ansi, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool startdocprinter(intptr hprinter, int32 level, [in, marshalas(unmanagedtype.lpstruct)] docinfoa di);   [dllimport("winspool.drv", entrypoint = "enddocprinter", setlasterror = true, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool enddocprinter(intptr hprinter);   [dllimport("winspool.drv", entrypoint = "startpageprinter", setlasterror = true, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool startpageprinter(intptr hprinter);   [dllimport("winspool.drv", entrypoint = "endpageprinter", setlasterror = true, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool endpageprinter(intptr hprinter);   [dllimport("winspool.drv", entrypoint = "writeprinter", setlasterror = true, exactspelling = true, callingconvention = callingconvention.stdcall)]  private static extern bool writeprinter(intptr hprinter, intptr pbytes, int32 dwcount, out int32 dwwritten);   [dllimport("winspool.drv", charset = charset.auto, setlasterror = true)]  public static extern bool getdefaultprinter(stringbuilder pszbuffer, ref int size);   #endregion dll wrappers   #region methods  /// <summary>  /// function gets pdf file name.  /// function opens pdf file, gets bytes & send them print.  /// </summary>  /// <param name="szprintername">printer name</param>  /// <param name="szfilename">pdf file name</param>  /// <returns>true on success, false on failure</returns>  public static bool sendfiletoprinter(string pdffilename)  {  try  {  #region connected printer name  printdocument pd = new printdocument();  stringbuilder dp = new stringbuilder(256);  int size = dp.capacity;  if (getdefaultprinter(dp, ref size))  {  pd.printersettings.printername = dp.tostring().trim();  }  #endregion connected printer name   // open pdf file.  filestream fs = new filestream(pdffilename, filemode.open);  // create binaryreader on file.  binaryreader br = new binaryreader(fs);  byte[] bytes = new byte[fs.length];  bool success = false;  // unmanaged pointer.  intptr ptrunmanagedbytes = new intptr(0);  int nlength = convert.toint32(fs.length);  // read contents of file array.  bytes = br.readbytes(nlength);  // allocate unmanaged memory bytes.  ptrunmanagedbytes = marshal.alloccotaskmem(nlength);  // copy managed byte array unmanaged array.  marshal.copy(bytes, 0, ptrunmanagedbytes, nlength);  // send unmanaged bytes printer.  success = sendbytestoprinter(pd.printersettings.printername, ptrunmanagedbytes, nlength);  // free unmanaged memory allocated earlier.  marshal.freecotaskmem(ptrunmanagedbytes);  return success;  }  catch (exception ex)  {  throw new exception(ex.message);  }  }   /// <summary>  /// function gets printer name , unmanaged array of bytes, function sends bytes print queue.  /// </summary>  /// <param name="szprintername">printer name</param>  /// <param name="pbytes">no. of bytes in pdf file</param>  /// <param name="dwcount">word count</param>  /// <returns>true on success, false on failure</returns>  private static bool sendbytestoprinter(string szprintername, intptr pbytes, int32 dwcount)  {  try  {  int32 dwerror = 0, dwwritten = 0;  intptr hprinter = new intptr(0);  docinfoa di = new docinfoa();  bool success = false; // assume failure unless succeed.   di.pdocname = "pdf document";  di.pdatatype = "raw";   // open printer.  if (openprinter(szprintername.normalize(), out hprinter, intptr.zero))  {  // start document.  if (startdocprinter(hprinter, 1, di))  {  // start page.  if (startpageprinter(hprinter))  {  // write bytes.  success = writeprinter(hprinter, pbytes, dwcount, out dwwritten);  endpageprinter(hprinter);  }  enddocprinter(hprinter);  }  closeprinter(hprinter);  }   // if print did not succeed, getlasterror may give more information failure.  if (success == false)  {  dwerror = marshal.getlastwin32error();  }  return success;  }  catch (exception ex)  {  throw new exception(ex.message);  }  }  #endregion methods  } } //testing above code  class program  {  static void main(string[] args)  {  try  { rawprinterhelper.sendfiletoprinter(@"e:\xyzdocs\xyz.pdf"); }  catch (exception ex)  {  console.writeline(ex.message);  }  }  } 

i have used above code print existing pdf file sending path send in queue pdf document not loaded correctly , not print done.

queue:

pdf document when code run , send file in queue c:/documents: