Java Tutorial/PDF/AcroFields

Fill AcroFields

   <source lang="java">

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.PdfCopy; import com.lowagie.text.pdf.PdfReader; import com.lowagie.text.pdf.PdfStamper; import com.lowagie.text.pdf.PdfWriter; import com.lowagie.text.pdf.RandomAccessFileOrArray; import com.lowagie.text.pdf.TextField; public class MainClass {

 public static void main(String[] args) throws Exception {
   createPdf("HelloLetter.pdf", "field", "value");
   RandomAccessFileOrArray letter = new RandomAccessFileOrArray("HelloLetter.pdf");
   PdfReader  reader = new PdfReader(letter, null);
   ByteArrayOutputStream baos = new ByteArrayOutputStream();
   PdfStamper stamper = new PdfStamper(reader, baos);
   AcroFields form = stamper.getAcroFields();
   form.setField("field", "World,");
   stamper.setFormFlattening(true);
   stamper.close();
   reader = new PdfReader(baos.toByteArray());
   Document document = new Document(reader.getPageSizeWithRotation(1));
   PdfCopy writer = new PdfCopy(document, new FileOutputStream("HelloWorldStampCopy.pdf"));
   document.open();
   writer.addPage(writer.getImportedPage(reader, 1));
   reader = new PdfReader(letter, null);
   baos = new ByteArrayOutputStream();
   stamper = new PdfStamper(reader, baos);
   form = stamper.getAcroFields();
   form.setField("field", "People,");
   stamper.setFormFlattening(true);
   stamper.close();
   reader = new PdfReader(baos.toByteArray());
   writer.addPage(writer.getImportedPage(reader, 1));
   document.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);
   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();
 }

}</source>

Rename AcroFields

   <source lang="java">

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.PdfReader; import com.lowagie.text.pdf.PdfStamper; import com.lowagie.text.pdf.PdfWriter; import com.lowagie.text.pdf.RandomAccessFileOrArray; import com.lowagie.text.pdf.TextField; public class MainClass {

 public static void main(String[] args) throws Exception {
   createPdf("HelloLetter.pdf", "field", "value");
   RandomAccessFileOrArray letter = new RandomAccessFileOrArray("HelloLetter.pdf");
   PdfReader reader = new PdfReader(letter, null);
   ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
   PdfStamper stamper = new PdfStamper(reader, baos1);
   AcroFields form = stamper.getAcroFields();
   form.renameField("field", "field1");
   stamper.close();
   reader = new PdfReader(letter, null);
   ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
   stamper = new PdfStamper(reader, baos2);
   form = stamper.getAcroFields();
   form.renameField("field", "field2");
   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);
   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();
 }

}</source>