Java Tutorial/PDF/PDF Stamper

Copy a selection of pages to new PDF files

import java.io.FileOutputStream;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
public class MainClass {
  public static void main(String[] args) throws Exception {
    PdfReader reader = new PdfReader("HelloWorldMultiplePages.pdf");
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("HelloSelectedOdd.pdf"));
    reader.selectPages("o");
    stamper.close();
    reader = new PdfReader("HelloWorldMultiplePages.pdf");
    stamper = new PdfStamper(reader, new FileOutputStream("HelloSelectedEven.pdf"));
    reader.selectPages("e");
    stamper.close();
    reader = new PdfReader("HelloWorldMultiplePages.pdf");
    stamper = new PdfStamper(reader, new FileOutputStream("HelloSelected12379.pdf"));
    reader.selectPages("1-3, 7-9, !8");
    stamper.close();
  }
}

Create PdfImportedPage

import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.List;
import com.lowagie.text.PageSize;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfAnnotation;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.SimpleBookmark;
public class MainClass {
  public static void main(String[] args) throws Exception {
    PdfReader reader = new PdfReader("test.pdf");
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("my.pdf"));
    stamper.insertPage(1, PageSize.A4);
    PdfContentByte cb = stamper.getOverContent(1);
    PdfImportedPage p = stamper.getImportedPage(reader, 2);
    cb.addTemplate(p, 0.4f, 0f, 0f, 0.4f, 36f, 450);
    p = stamper.getImportedPage(reader, 3);
    cb.addTemplate(p, 0.4f, 0f, 0f, 0.4f, 300f, 450);
    p = stamper.getImportedPage(reader, 4);
    cb.addTemplate(p, 0.4f, 0f, 0f, 0.4f, 36f, 100);
    stamper.addAnnotation(PdfAnnotation.createText(stamper.getWriter(), new Rectangle(300f, 350f,
        500f, 450f), "inserted page", "This page contains a copy of the next three pages.", true,
        null), 1);
    List list = SimpleBookmark.getBookmark(reader);
    HashMap<String, String> map = new HashMap<String, String>();
    map.put("Title", "title content");
    map.put("Action", "GoTo");
    map.put("Page", "1 FitH 806");
    list.add(0, map);
    stamper.setOutlines(list);
    stamper.close();
  }
}

Import page

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfCopy;
import com.lowagie.text.pdf.PdfReader;
public class MainClass {
  public static void main(String[] args) throws Exception {
    PdfReader reader = new PdfReader("HelloWorldMultiplePages.pdf");
    reader.selectPages("o");
    int pages = reader.getNumberOfPages();
    Document document = new Document();
    PdfCopy copy = new PdfCopy(document, new FileOutputStream("HelloWorldSelectPagesOdd.pdf"));
    document.open();
    for (int i = 0; i < pages;) {
      ++i;
      copy.addPage(copy.getImportedPage(reader, i));
    }
    document.close();
  }
}

Stamping PDF file

import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.PageSize;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.AcroFields;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.GrayColor;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfCopyFields;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.TextField;
public class MainClass{
  public static void main(String[] args) throws Exception {
    createPdf("1.pdf", "field1", "value");
    createPdf("2.pdf", "field2", "value");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PdfCopyFields copy = new PdfCopyFields(baos);
    copy.addDocument(new PdfReader("1.pdf"));
    copy.addDocument(new PdfReader("2.pdf"));
    copy.close();
    PdfReader reader = new PdfReader(baos.toByteArray());
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(
        "HelloWorldCopyStamp.pdf"));
    AcroFields form = stamper.getAcroFields();
    form.setField("field1", "World");
    form.setField("field2", "People");
    stamper.setFormFlattening(true);
    stamper.close();
  }
  private static void createPdf(String filename, String field, String value)
      throws Exception {
    Document document = new Document(PageSize.A4);
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(
        filename));
    document.open();
    BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI,
        BaseFont.NOT_EMBEDDED);
    PdfContentByte cb = writer.getDirectContent();
    cb.beginText();
    cb.setFontAndSize(bf, 12);
    cb.setLeading(16);
    cb.moveText(36f, 788f);
    cb.showText("Hi");
    cb.newlineShowText("this is a atest");
    cb.endText();
    TextField tf = new TextField(writer, new Rectangle(64, 785, 340, 800),
        field);
    tf.setFontSize(12);
    tf.setFont(bf);
    tf.setText(value);
    tf.setTextColor(new GrayColor(0.5f));
    writer.addAnnotation(tf.getTextField());
    document.close();
  }
}