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import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass {
public static void main(String[] args) throws Exception {
Document.compress = false;
Document document = new Document();
PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
document.add(new Paragraph("Hello World"));
document.close();
PdfReader reader = new PdfReader("HelloWorld.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("updated.pdf"), '\0', true);
PdfContentByte cb = stamper.getOverContent(1);
cb.beginText();
cb.showTextAligned(Element.ALIGN_LEFT, "Hello People", 36, 770, 0);
cb.endText();
stamper.close();
}
}
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