Quick Start: Removing certificate-based encryption using the web service API

The following C# code example removes certificate-based encryption from a PDF document named EncryptLoanCert.pdf. The alias of the public key that is used to remove encryption is Encryption. The unsecured PDF document is saved as a PDF file named noEncryptionLoan.pdf. (See Removing Certificate Based Encryption.)

/*

 * 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 RemovePKIEncryption

{

	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 PKI encrypted PDF document 

		BLOB inDoc = new BLOB();

		//Specify the location of the PKI encrypted PDF document

		string path = "C:\\Adobe\\EncryptLoanCert.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; 

		//Remove PKI encryption from the PDF document

		BLOB outDoc = encryptionClient.removePDFCertificateSecurity(inDoc,"Encryption");

		//Populate a byte array with a BLOB data

		byte[] outByteArray=outDoc.binaryData; 

		//Create a new file that represents the unencrypted PDF document

		string FILE_NAME = "C:\\Adobe\\noEncryptionLoan.pdf" ; 

		FileStream fs2 = new FileStream(FILE_NAME, FileMode.OpenOrCreate);

		//Create a BinaryWriter object

		BinaryWriter w = new BinaryWriter(fs2);

		w.Write(outByteArray);

		w.Close();

		fs2.Close();

		}

	catch (Exception ee)

		{

			Console.WriteLine(ee.Message);  

		}

		}

	}

}

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