Removing password-based encryption using the web service API

1.	Include project files

•	Create a Microsoft .NET client assembly that consumes the Encryption service WSDL. For information, see Creating a .NET client assembly.

•	Reference the Microsoft .NET client assembly. For information, see Referencing the .NET client assembly.

2.	Create a service client

Using the Microsoft .NET client assembly, create an EncryptionServiceService object by invoking its default constructor.

3.	Get the encrypted PDF document

•	Create a BLOB object by using its constructor. The BLOB object is used to store a password-encrypted PDF document.

•	Create a System.IO.FileStream object by invoking its constructor and passing a string value that represents the file location of the PDF document to encrypt and the mode in which to open the file.

•	Create a byte array that stores the content of the System.IO.FileStream object. You can determine the size of the byte array by getting the System.IO.FileStream object’s Length property.

•	Populate the byte array with stream data by invoking the System.IO.FileStream object’s Read method and passing the byte array, the starting position, and the stream length to read.

•	Populate the BLOB object by assigning its binaryData property with the contents of the byte array.

4.	Remove password-based encryption from the PDF document

Invoke the EncryptionServiceService object’s removePDFPasswordSecurity method and pass the following values:

•	The BLOB object that contains file stream data that represents an encrypted PDF document.

•	A string value that specifies the password value that is used to remove encryption from the PDF document. This value is specified when encrypting the PDF document with a password.

The removePDFPasswordSecurity method returns a BLOB object that contains a password-encrypted PDF document.

5.	Save the PDF document

•	Create a System.IO.FileStream object by invoking its constructor and passing a string value that represents the file location of the unsecured PDF document.

•	Create a byte array that stores the content of the BLOB object that was returned by the removePDFPasswordSecurity method. Populate the byte array by getting the value of the BLOB object’s binaryData data member.

•	Create a System.IO.BinaryWriter object by invoking its constructor and passing the System.IO.FileStream object.

•	Write the contents of the byte array to a PDF file by invoking the System.IO.BinaryWriter object’s Write method and passing the byte array.

Current page: http://livedocs.adobe.com/livecycle/es/sdkHelp/programmer/sdkHelp/encryptionRemoving.73.4.html