Quick Start: Unlocking an encrypted PDF document using the web service API

The following C# code example unlocks a password-encrypted PDF document named EncryptLoan.pdf. (See Unlocking Encrypted PDF Documents.)

/*

 * Ensure that you create a .NET client assembly that uses 

 * base64 encoding. This is required to populate a BLOB 

 * object with data or retrieve data from a BLOB object.

 * 

 * For information, see "Invoking LiveCycle ES using Base64 Encoding" 

 * in Programming with LiveCycle ES

 */

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.IO;

namespace UnlockPDF

{

    class Class1

    {

        [STAThread]

        static void Main(string[] args)

        {

            try

            {

                //Create an EncryptionServiceService client object

                EncryptionServiceService encryptionClient = new EncryptionServiceService();

                encryptionClient.Credentials = new System.Net.NetworkCredential("administrator", "password");

                //Create a BLOB object to store the password-encrypted PDF document 

                BLOB inDoc = new BLOB();

                //Specify the password-encrypted PDF document 

                string path = "C:\\Adobe\\EncryptLoan.pdf";

                FileStream fs = new FileStream(path, FileMode.Open);

                //Get the length of the file stream 

                int len = (int)fs.Length;

                byte[] ByteArray = new byte[len];

                //Populate the byte array with the contents of the FileStream object

                fs.Read(ByteArray, 0, len);

                inDoc.binaryData = ByteArray;

                //Unlock the password-encrypted PDF document

                BLOB outDoc = encryptionClient.unlockPDFUsingPassword(inDoc, "OpenPassword");

            }

            catch (Exception ee)

            {

                Console.WriteLine(ee.Message);

            }

        }

    }

}

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