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(Android™) Sign PDF in the Cloud using Azure Key VaultSee more Signing in the Cloud ExamplesDemonstrates how to sign a PDF using Azure Key Vault. The signing of the hash happens in the Cloud on Azure Key Vault. Everything else involving the updating the PDF to add the signature happens locally within Chilkat.Note: This example requires Chilkat v9.5.0.96 or greater.
// Important: Don't forget to include the call to System.loadLibrary // as shown at the bottom of this code sample. package com.test; import android.app.Activity; import com.chilkatsoft.*; import android.widget.TextView; import android.os.Bundle; public class SimpleActivity extends Activity { private static final String TAG = "Chilkat"; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkPdf pdf = new CkPdf(); // Load a PDF to be signed. boolean success = pdf.LoadFile("qa_data/pdf/helloWorld.pdf"); if (success == false) { Log.i(TAG, pdf.lastErrorText()); return; } // Options for signing are specified in JSON. CkJsonObject json = new CkJsonObject(); // Optionally create an LTV-enabled signature json.UpdateBool("ltvOcsp",true); // Define the appearance of the signature. json.UpdateInt("page",1); json.UpdateString("appearance.y","top"); json.UpdateString("appearance.x","left"); json.UpdateString("appearance.fontScale","10.0"); json.UpdateString("appearance.text[0]","Digitally signed by: cert_cn"); json.UpdateString("appearance.text[1]","current_dt"); json.UpdateString("appearance.text[2]","This is an LTV-enabled signature."); // Load the certificate used for signing. The certificate's private key is stored in // the Azure Key Vault. // However, we still need the certificate locally (without private key). CkCert cert = new CkCert(); success = cert.LoadFromFile("qa_data/certs/myCert.cer"); if (success == false) { Log.i(TAG, cert.lastErrorText()); return; } // Here's a screenshot of our certificate with private key on Azure Key Vault: |
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