Mega Code Archive

 

Categories / Java Tutorial / PDF

 

Changes the URL of an AcroForm

import java.io.FileOutputStream; import java.util.HashMap; import com.lowagie.text.pdf.AcroFields; import com.lowagie.text.pdf.PRIndirectReference; import com.lowagie.text.pdf.PdfDictionary; import com.lowagie.text.pdf.PdfName; import com.lowagie.text.pdf.PdfReader; import com.lowagie.text.pdf.PdfStamper; import com.lowagie.text.pdf.PdfString; public class MainClass {   public static void main(String[] args) throws Exception {     PdfReader reader = new PdfReader("2.pdf");     PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("3.pdf"));     AcroFields form = stamper.getAcroFields();     HashMap fields = form.getFields();     AcroFields.Item field = (AcroFields.Item) fields.get("PushMe");     PRIndirectReference ref = (PRIndirectReference) field.widget_refs.iterator().next();     PdfDictionary object = (PdfDictionary) reader.getPdfObject(ref.getNumber());     PdfDictionary action = (PdfDictionary) object.get(PdfName.A);     PdfDictionary file = (PdfDictionary) action.get(PdfName.F);     file.put(PdfName.F, new PdfString("http://yourserver/form.jsp"));     stamper.close();   } }