MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

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.pdf.PdfReader;
import com.lowagie.text.pdf.PdfSignatureAppearance;
import com.lowagie.text.pdf.PdfStamper;

public class MainClass {
    public static void main(String[] args) throws Exception {
        PdfReader reader;
        KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
        ks.load(new FileInputStream(".keystore"), "string".toCharArray());
        PrivateKey key = (PrivateKey) ks.getKey("key", "value".toCharArray());
        Certificate[] chain = ks.getCertificateChain("foobar");
        reader = new PdfReader("2.pdf");
        FileOutputStream os = new FileOutputStream("1.pdf");
        PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0');
        PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
        appearance.setCrypto(key, chain, null, PdfSignatureAppearance.SELF_SIGNED);
        appearance.setReason("personal");
        appearance.setLocation("Foobar");
        appearance.setVisibleSignature("yoursig");
        stamper.close();
    }

}