Hi,
i am trying to sign PDF file using iText.
the code is working fine when i am using the Adobe Digital Signature and the
same code through an error when i am using the VeriSign digital signature.
please find the code below;
File file = new File(l_file_path + mFileSeparator
+ "XXMON_INVOICE_PRINT_" + RequestId
+ "_1.PDF");
if (!file.exists())
throw new FileNotFoundException("File "+ file.getPath() +
"doesn't exist");
PdfReader reader = new PdfReader(file.getPath());
KeyStore ks = KeyStore.getInstance("pkcs12");
//KeyStore ks = KeyStore.getInstance("IBMJCE");
ks.load(new
FileInputStream("/d11/oradata/MON_DATA/einvoice/ManuSharmaVeri.pfx"),"Technical77a".toCharArray());
String alias = (String)ks.aliases().nextElement();
PrivateKey key =
(PrivateKey)ks.getKey(alias,"Technical77a".toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
FileOutputStream fout = new
FileOutputStream("/d11/oradata/MON_DATA/einvoice/XXMON_INVOICE_PRINT_" +
RequestId + "_1.PDF");
PdfStamper stp = PdfStamper.createSignature(reader, fout,
'\0');
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key, chain, null,
PdfSignatureAppearance.WINCER_SIGNED);
//sap.setCrypto(key, chain, null,
PdfSignatureAppearance.SELF_SIGNED);
sap.setReason("I'm the author");
sap.setLocation("Delhi");
//comment next line to have an invisible signature
sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1,
null);
stp.close();
error log;
java.lang.NullPointerException
at com.lowagie.text.pdf.PdfSignatureAppearance.getAppearance(Unknown
Source)
at com.lowagie.text.pdf.PdfSignatureAppearance.preClose(Unknown Source)
at com.lowagie.text.pdf.PdfSignatureAppearance.preClose(Unknown Source)
at com.lowagie.text.pdf.PdfStamper.close(Unknown Source)
at
oracle.apps.xxmon.PDFDigitalSignVeri.runProgram(PDFDigitalSignVeri.java:129)
at oracle.apps.fnd.cp.request.Run.main(Run.java:161)
java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)
Classic VM (build 1.4.2, J2RE 1.4.2 IBM AIX build ca142-20070708 (SR9) (JIT
enabled: jitc))
jar file used:
bcmail-jdk14-141.jar
bcprov-ext-jdk14-141.jar
bcprov-jdk14-141.jar
iText-2.1.4.jar
please suggest...
Thanks & Regards,
Manu
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