Aes128Security

Represents AES 128 bit PDF document security.

public class Aes128Security : Security
Public Class Aes128Security
    Inherits Security

Inheritance: ObjectSecurityAes128Security

Licensing Info

This class is a full DynamicPDF Core Suite feature. One of the following is required for non-evaluation usage:

Examples

The following example will set the AES security of the document so that the anyone who logs in with the user password will not be able to edit annotations or form fields.
Imports System
Imports ceTe.DynamicPDF
Imports ceTe.DynamicPDF.PageElements
Imports ceTe.DynamicPDF.Cryptography
 
Module MyModule
 		
    Sub Main()
 
        ' Create a PDF Document
        Dim MyDocument As Document = New Document() 
 
        ' Create a Page and add it to the document
        Dim MyPage As Page = New Page
        MyDocument.Pages.Add(MyPage)
 
        ' Create a AES 128 bit security object
        Dim security As Aes128Security = New Aes128Security("owner", "user")
 
        ' Set these properties to make form fields read only
        security.AllowFormFilling = False
        security.AllowEdit = False
        security.AllowUpdateAnnotsAndFields = False
 
        ' Add the security object to the document
        MyDocument.Security = security
 
        ' Create and display a label as a reference
        Dim text As String = "This document has been encrypted with AES 128 bit encryption."
        MyPage.Elements.Add(New Label(text, 50, 50, 400, 100, Font.Helvetica, 18))
 
        ' Save the PDF
        MyDocument.Draw("C:\MyDocument.pdf")
 
    End Sub
End Module
using System;
using ceTe.DynamicPDF;
using ceTe.DynamicPDF.PageElements;
using ceTe.DynamicPDF.Cryptography;

public class Example
{
    public static void CreatePDF(string outputPath)
    {
        // Create a PDF Document
        Document document = new Document();

        // Create a Page and add it to the document
        Page page = new Page();
        document.Pages.Add( page );

        // Create a AES 128 bit security object
        Aes128Security security = new Aes128Security( "owner", "user" );
       
        // Set these properties to make form fields read only
        security.AllowFormFilling = false;
        security.AllowEdit = false;
        security.AllowUpdateAnnotsAndFields = false;

        // Add the security object to the document
        document.Security = security;

        // Create and display a label as a reference
        string text = "This document has been encrypted with AES 128 bit encryption.";
        page.Elements.Add( new Label( text, 50, 50, 400, 100, Font.Helvetica, 18 ) );

        // Save the PDF
        document.Draw( outputPath );
    }
}

Remarks

AES 128 bit PDF security is compatible with PDF version 1.5 and higher and can be read with Adobe Acrobat Reader version 7 or higher. Older readers will not be able to read document encrypted with this security. Setting document version to lower values will throw an exception at the time of draw. For more details on AES 128 bit security take a look at the Security topic.

Constructors

Aes128Security()Initializes a new instance of the Aes128Security class.
Aes128Security(String)Initializes a new instance of the Aes128Security class.
Aes128Security(String, String)Initializes a new instance of the Aes128Security class.

Properties

AllowAccessibilityGets or sets if accessibility programs should be able to read the documents text and images for the user.
AllowCopyGets or sets if text and images can be copied to the clipboard by the user.
(Inherited from Security)
AllowDocumentAssemblyGets or sets if the document can be assembled and manipulated by the user.
AllowEditGets or sets if the document can be edited by the user.
(Inherited from Security)
AllowFormFillingGets or sets if form filling should be allowed by the user.
AllowHighResolutionPrintingGets or sets if the document can be printed at a high resolution by the user.
AllowPrintGets or sets if the document can be printed by the user.
(Inherited from Security)
AllowUpdateAnnotsAndFieldsGets or sets if annotations and form fields can be added, edited and modified by the user.
(Inherited from Security)
DocumentComponentsGets or sets the documents components to be encrypted.
OwnerPasswordGets or sets the owner password.
(Inherited from Security)
UserPasswordGets or sets the user password.
(Inherited from Security)

Methods

Draw(DocumentWriter, Encrypter)Draws the encrypter dictionary to the given DocumentWriter object.
Equals(Object)Determines whether the specified Object is equal to the current Object .
(Inherited from Object)
GetEncrypter(Byte[])Gets a 128 bit Encrypter object to be used for encrypting the document.
GetHashCode()Serves as a hash function for a particular type.
(Inherited from Object)
GetType()Gets the Type of the current instance.
(Inherited from Object)
ToString()Returns a String that represents the current Object .
(Inherited from Object)

See Also

ceTe.DynamicPDF.Cryptography

In this topic