It has NOTHING to do with the version of Acrobat - it has to do with the forms
technology used.
There are two types of forms technologies in PDF - AcroForms and XFA. You
can't mix them...
Leonard
From: Gauravk Tyagi [mailto:gauravk.ty...@tcs.com]
Sent: Tuesday, November 10, 2009 8:17 AM
To: itext-questions@lists.sourceforge.net
Subject: [iText-questions] reg: the addition of blank signature over an adobe
XFA form, please help
hello All,
can you people please guide me to how to add a signtaure on an adobe9 form
using itext. i used the two codes that are working fine for a form filled in
adobe 7 but for a form filled in adobe 9 not any signature is being added to
the existing pdf.
This code was used to add the signature.
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.cert.Certificate;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.AcroFields;
import com.lowagie.text.pdf.PRAcroForm;
import com.lowagie.text.pdf.PdfAcroForm;
import com.lowagie.text.pdf.PdfAnnotation;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfFormField;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfSignatureAppearance;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfString;
import com.lowagie.text.pdf.PdfWriter;
public class DSOnPdf {
/**
* @param args
*/
public static void main(String[] args)
{
try
{
//String strInputFileName ="C:\\sign\\1049-Form1BSigned9.pdf";
String strInputFileName
="C:\\sign\\Form23_Adobe9_1.1_2sign.pdf";
String strOutPutFileName ="C:\\sign\\Form 20 BRRNEW.pdf";
PdfReader reader = new PdfReader(strInputFileName);
FileOutputStream fout = new
FileOutputStream("C:\\sign\\Form23_Adobe9_1.1_2signnew.pdf");
PdfStamper stp = new PdfStamper(reader, fout);
PdfWriter pdfStamperImp = stp.getWriter();
PdfAcroForm acroForm = pdfStamperImp.getAcroForm();
PdfFormField signature =
PdfFormField.createSignature(pdfStamperImp);
acroForm.setSignatureParams(signature, "Signature1", 73, 173,
123, 132);
acroForm.drawSignatureAppearences(signature, 73, 173, 123, 132);
stp.addSignature("Signature1", 1,73, 173, 123, 132);
//acroForm.addFormField(signature);
//stp.addAnnotation(signature, 4324);
//PdfFormField sig = addSignature(stp, 1, "signature", 73, 73,
23, 32);
//stp.setFormFlattening(true);
//sig.setFieldFlags(PdfAnnotation.FLAGS_PRINT);
// sig.setFlags(PdfAnnotation.FLAGS_PRINT);
stp.close();
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
static PdfFormField addSignature(PdfStamper pdfStamper, int page,
String name, float llx, float lly, float urx, float ury)
{
PdfWriter pdfStamperImp = pdfStamper.getWriter();
PdfAcroForm acroForm = pdfStamperImp.getAcroForm();
PdfFormField signature = PdfFormField.createSignature(pdfStamperImp);
acroForm.setSignatureParams(signature, name, llx, lly, urx, ury);
acroForm.drawSignatureAppearences(signature, llx, lly, urx, ury);
pdfStamper.addAnnotation(signature, page);
signature.setFieldFlags(PdfAnnotation.FLAGS_PRINT);
return signature;
}
}
And this code was used to sign that signature field generated.
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.cert.Certificate;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.AcroFields;
import com.lowagie.text.pdf.PRAcroForm;
import com.lowagie.text.pdf.PdfAcroForm;
import com.lowagie.text.pdf.PdfAnnotation;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfFormField;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfSignatureAppearance;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfString;
import com.lowagie.text.pdf.PdfWriter;
public class DigitalSignatureOnPdf2 {
/**
* @param args
*/
public static void main(String[] args)
{
try
{
KeyStore ks = KeyStore.getInstance("pkcs12");
ks.load(new
FileInputStream("D:\\Util\\certs\\AXISBANKDEMO.p12"),"AXISBANK".toCharArray());
String alias = (String)(ks.aliases().nextElement());
PrivateKey key =
(PrivateKey)ks.getKey(alias,"AXISBANK".toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
String strInputFileName ="C:\\sign\\Form 20 BNEW23123.pdf";
//String strInputFileName ="C:\\sign\\DocumentRR.pdf";
String strOutPutFileName ="C:\\sign\\Form 20 BNEW23123new.pdf";
PdfReader reader = new PdfReader(strInputFileName);
int n = reader.getNumberOfPages();
//FileOutputStream fout = new
FileOutputStream("C:\\sign\\1049-Form1BSigned9new.pdf");
FileOutputStream fout = new FileOutputStream("C:\\sign\\Form 20
BNEW23123new.pdf");
//For single signature on pdf
//PdfStamper stp = PdfStamper.createSignature(reader,
fout, '\6');
//for multiple signature
File f=new File("C:\\sign\\gaurav.pdf");
PdfStamper stp = PdfStamper.createSignature(reader,
fout,'\0',null,true);
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key, chain, null,
PdfSignatureAppearance.WINCER_SIGNED);
//sap.setVisibleSignature(new Rectangle(500, 200, 550, 230), 1,
null);
//sap.setVisibleSignature(new Rectangle(200, 200, 250, 230), 1,
null);
//sap.setVisibleSignature("form1_DTLs[0].page1[0].Sign2[0]");
sap.setVisibleSignature("Signature1");
//stp.setFormFlattening(true);
stp.close();
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
These both are working for adobe 7 forms but not for adobe 9 forms.and the
forms are XFA based .
Gaurav Kumar Tyagi
Asst. System Engineer Trainee
Tata Consultancy Services
154, B Block A,
Sector 63, Phase III, Noida Distt
Gautam Buddha Nagar
Noida - 201301,Up
India
Cell:- 09990013398
Mailto: gauravk.ty...@tcs.com
Website: http://www.tcs.com<http://www.tcs.com/>
____________________________________________
Experience certainty. IT Services
Business Solutions
Outsourcing
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