private static void Cades(PrivateKey privateKey, X509Certificate[] chain, String tsaUrl) throws CAdESException, IOException {
        //Создание
        CAdESSignature cAdESSignature = new CAdESSignature(true);
        cAdESSignature.addSigner("JCP",
                JCP.GOST_DIGEST_2012_256_OID,
                JCP.GOST_PARAMS_EXC_2012_256_KEY_OID,
                privateKey,
                Arrays.asList(chain),
                CAdESType.CAdES_BES,
                /*tsaUrl,*/ null,
                false);
        byte[] data;
        File file = new File("C:\\Work\\HDImageStore\\PDF\\a\\pdf.pdf");
        data = Files.readAllBytes(Paths.get(file.getAbsolutePath()));
        ByteArrayOutputStream signatureStream = new ByteArrayOutputStream();
        cAdESSignature.open(signatureStream);
        cAdESSignature.update(data);
        cAdESSignature.close();
        System.out.println(cAdESSignature);
        byte[] cadesCMS = signatureStream.toByteArray();
        OutputStream os = new FileOutputStream("pdf.bin");
        signatureStream.close();
        os.write(cadesCMS);
        os.close();

        //ПРОВЕРКА
        FileInputStream cades = new FileInputStream("pdf.bin");
        CAdESSignature signature = new CAdESSignature(cades, new FileInputStream(file), CAdESType.CAdES_BES);
        signature.verify(Arrays.asList(chain)); 
}

cAdESSignature.addSigner("JCP",
                    JCP.GOST_DIGEST_2012_256_OID,
                    JCP.GOST_PARAMS_EXC_2012_256_KEY_OID,
                    privateKey,
                    Arrays.asList(chain),
                    CAdESType.CAdES_X_Long_Type_1,
                    tsaUrl,  
                    false);