be.fedict.commons-eid - 0.6.5
com.itextpdf - 5.5.10
org.bouncycastle - 1.55

BeIDCardManager manager = new BeIDCardManager();

        manager.addBeIDCardEventListener(new BeIDCardEventsListener() {

       public void eIDCardInserted(CardTerminal arg0, BeIDCard arg1) {
            log.info("Inserted");
            try {
                dostuffwithmycard(arg1);
            } catch (Exception e) {
                e.printStackTrace();
            }
          }
       }

protected static void dostuffwithmycard(BeIDCard card) throws IOException, DocumentException, GeneralSecurityException {
        Security.addProvider(new BeIDProvider());
        KeyStore keyStore = KeyStore.getInstance("BeID");
        keyStore.load(null, null);
        PrivateKey authnPrivateKey = (PrivateKey) keyStore.getKey("Authentication", null);
        Signature signature = Signature.getInstance("SHA1withRSA");
        signature.initSign(authnPrivateKey);

        PdfReader reader = new PdfReader("C:\Untitled.pdf");
        FileOutputStream os = new FileOutputStream( "C:\temp\Signed.pdf");
        PdfStamper stamper = PdfStamper.createSignature(reader, os, '');
        PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
        appearance.setReason("Okay");
        appearance.setLocation("Home");
        appearance.setVisibleSignature(new Rectangle(36,748,144,780), 1, "sig");

        ExternalDigest digest = new BouncyCastleDigest();
        ExternalSignature sig = new PrivateKeySignature(authnPrivateKey,  "SHA1", "BeIDProvider");

        MakeSignature.signDetached(appearance, digest, sig, keyStore.getCertificateChain("Signature"), null, null, null, 0, CryptoStandard.CMS);
    }