iText Questions

Code samples that were made in answer to questions

This is a series of examples written by Bruno Lowagie in answer to questions that were posted to the iText mailing list.

questions.forms.FillDynamicXfa2

/*
 * This example was written by Bruno Lowagie, author of the book
 * 'iText in Action' by Manning Publications (ISBN: 1932394796).
 * You can use this example as inspiration for your own applications.
 * The following license applies:
 * http://www.1t3xt.com/about/copyright/index.php?page=MIT
 */
package questions.forms;
 
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
 
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
 
import com.lowagie.text.DocumentException;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.XfaForm;
 
public class FillDynamicXfa2 {
 
	public static final String RESOURCE_PDF = "resources/questions/forms/dynamic.pdf";
	public static final String RESOURCE_DATA = "resources/questions/forms/datasets.xml";
	public static final String RESULT = "results/questions/forms/filled_xfa2.pdf";
 
	public static void main(String[] args) {
		try {
			// getting new data from a "datasets" XML snippet
			File file = new File(RESOURCE_DATA);
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    		dbf.setNamespaceAware(true);
    		DocumentBuilder db = dbf.newDocumentBuilder();        		
    		Document newdoc = db.parse(file);
    		Element element = newdoc.getDocumentElement();
    		NodeList nodelist = element.getElementsByTagNameNS("http://www.xfa.org/schema/xfa-data/1.0/", "data");
    		Node newdata = nodelist.item(0);
 
    		// replacing the XFA in an existing document
			PdfReader reader = new PdfReader(RESOURCE_PDF);
			XfaForm xfa = new XfaForm(reader);
			Document doc = xfa.getDomDocument();
    		NodeList list = doc.getElementsByTagNameNS("http://www.xfa.org/schema/xfa-data/1.0/", "datasets");
    		list.item(0).replaceChild(doc.importNode(newdata, true), list.item(0).getFirstChild());
			PdfStamper stamper = new PdfStamper(reader,
					new FileOutputStream(RESULT));
			xfa.setDomDocument(doc);
    		xfa.setChanged(true);
			XfaForm.setXfa(xfa, stamper.getReader(), stamper.getWriter());
			stamper.close();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (DocumentException e) {
			e.printStackTrace();
		} catch (ParserConfigurationException e) {
			e.printStackTrace();
		} catch (SAXException e) {
			e.printStackTrace();
		}
	}
}
 

javac -d bin -cp "bin;lib/iText.jar" src/questions/forms/FillDynamicXfa2.java

java -cp "bin;lib/iText.jar" questions.forms.FillDynamicXfa2