Transfer OutputStream to InputStream

outputstream_to_inputstream.txt

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

import com.itextpdf.text.Document;
import com.itextpdf.text.Element;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;

public class Teste {
	public static void main(String[] args) {
		try {
			ByteArrayOutputStream o = new ByteArrayOutputStream();

			Document document = new Document();
			PdfWriter.getInstance(document, o);
			document.addTitle("My iText Test");

			document.open();

			Paragraph paragraph = new Paragraph();
			paragraph.add("Hello World");
			paragraph.setAlignment(Element.ALIGN_CENTER);
			document.add(paragraph);

			document.close();
			
			ByteArrayInputStream input = new ByteArrayInputStream(o.toByteArray());
			
			input.close();

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}