Open PDF in android app

I am working on an application where need to open the pdf file in the device,

I have actually got the code on the web that is similar to most of the examples. But, the thing is that I am not able to open the file and the control goes to the "Exception" part directly.

Here is the code below:

public class MyPDFDemo extends Activity 
{
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)   
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

    Button OpenPDF = (Button) findViewById(R.id.button);
    OpenPDF.setOnClickListener(new View.OnClickListener()
    { 
        public void onClick(View v) 
        {
            File pdfFile = new File("/sdcard/Determine_RGB_Codes_With_Powerpoint [PDF Library].pdf"); 
            if(pdfFile.exists()) 
            {
                Uri path = Uri.fromFile(pdfFile); 
                Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
                pdfIntent.setDataAndType(path, "application/pdf");
                pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

                try
                {
                    startActivity(pdfIntent);
                }
                catch(ActivityNotFoundException e)
                {
                    Toast.makeText(MyPDFDemo.this, "No Application available to view pdf", Toast.LENGTH_LONG).show(); 
                }
            }

        }
    });

}

When I run this code : i used to see " No Application available to view pdf ". Can anyone please me to view the pdf file.