Mega Code Archive

 

Categories / Java Tutorial / PDF

 

Add Certificate to Pdf document

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();   } }