Read Existing PDF In Java

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import java.io.FileOutputStream;
import java.io.IOException;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.PdfImportedPage;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;

public class JavaiTextReadExisting {

	private static String INPUTFILE = "c:/temp/FirstPdf.pdf";
	private static String OUTPUTFILE = "c:/temp/ReadPdf.pdf";

	public static void main(String[] args) throws DocumentException, IOException {
		Document document = new Document();

		PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(OUTPUTFILE));
		document.open();
		PdfReader reader = new PdfReader(INPUTFILE);
		int n = reader.getNumberOfPages();
		PdfImportedPage page;
		// Go through all pages
		for (int i = 1; i <= n; i++) {
			// only page number 2 will be included
			if (i == 2) {
				page = writer.getImportedPage(reader, i);
				Image instance = Image.getInstance(page);
				document.add(instance);
			}
		}
		document.close();

	}
}
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