Hi,
One approach is to install the quick office in the mobile phone and use the following code to view the pdf file.

public class Pdf extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Button button = (Button) findViewById(R.id.PdfButton);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
File file = new File("/sdcard/myfile.pdf");

if (file.exists()) {
Uri path = Uri.fromFile(file);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(path, "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

try {
startActivity(intent);
}
catch (ActivityNotFoundException e) {
// "No Application to View PDF",
}
}
}
});
}
}

Second you can use PDFBOX api to read the pdf files in android. Search on google you will find it

thanks for your reply :D
but i still can't run this application..
there's still error on
Button button = (Button) findViewById(R.id.PdfButton);
button.setOnClickListener(new View.OnClickListener() {
maybe u can tell me, what should i add..?
sorry i bother you, but i still newbie :(

Can you please paste the error here. Just write the try catch block around your code and check the exception message. Also paste that message here.

List is a raw type. References to generic type List should be parameterized readeractivity.java /reader/src/reader/com line 19 Java Problem

or maybe i must make a button in main.xml..?
if yes i already make it, and no error again.. but the pdf file still not show,
can i send u my android project?

Please attach the debugger with your code, then run your project and check which line throws the error.

i'm sorry but i don't understand how to check error.. and i dont understand english too much :(
but thanks a lot for your help :D