EncryptionMode Property

Summary

Indicates the encryption mode to use when updating or creating a PDF document.

Syntax

C++

Java

public PDFEncryptionMode EncryptionMode { get; set; }

Public Property EncryptionMode As PDFEncryptionMode

public PDFEncryptionMode getEncryptionMode(); 
public void setEncryptionMode( 
   PDFEncryptionMode pDFEncryptionMode 
);

public: 
property PDFEncryptionMode EncryptionMode { 
   PDFEncryptionMode get(); 
   void set (    PDFEncryptionMode ); 
}

Property Value

An PDFEncryptionMode enumeration member that specifies the encryption mode to use when updating or creating a PDF document. The default value is PDFEncryptionMode.RC40Bit.

Remarks

PDF encryption mode along with the UserPassword used for encryption and the OwnerPassword to set owner access right properties, provide customized security levels in the PDF document.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Controls; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.Pdf; 
using Leadtools.Svg; 
using Leadtools.WinForms; 
 
 
/// This example will encrypt a PDF file with both a user password and an owner password and restrict printing. 
 
public void PDFFileSecurityOptionsExample() 
{ 
   string sourceFileName = Path.Combine(LEAD_VARS.ImagesDir, @"Leadtools.pdf"); 
   string destinationFileName = Path.Combine(LEAD_VARS.ImagesDir, @"LEAD_EncryptedNoPrint.pdf"); 
 
   PDFFile pdfFile = new PDFFile(sourceFileName); 
 
   // Set the security options 
   pdfFile.SecurityOptions = new PDFSecurityOptions(); 
   pdfFile.SecurityOptions.UserPassword = "LEAD"; 
   pdfFile.SecurityOptions.OwnerPassword = "LEAD_SECRET"; 
   pdfFile.SecurityOptions.PrintEnabled = false; 
   pdfFile.SecurityOptions.HighQualityPrintEnabled = false; 
   pdfFile.SecurityOptions.EncryptionMode = PDFEncryptionMode.RC128Bit; 
 
   // Encrypt the file by saving it to the destination file 
   pdfFile.Convert(1, -1, destinationFileName); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Pdf 
Imports Leadtools.WinForms 
Imports Leadtools.Svg 
Imports Leadtools.ImageProcessing 
 
''' This example will encrypt a PDF file with both a user password and an owner password and restrict printing. 
 
Public Sub PDFFileSecurityOptionsExample() 
   Dim sourceFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf") 
   Dim destinationFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "LEAD_EncryptedNoPrint.pdf") 
 
   Dim pdfFile As PDFFile = New PDFFile(sourceFileName) 
 
   ' Set the security options 
   pdfFile.SecurityOptions = New PDFSecurityOptions() 
   pdfFile.SecurityOptions.UserPassword = "LEAD" 
   pdfFile.SecurityOptions.OwnerPassword = "LEAD_SECRET" 
   pdfFile.SecurityOptions.PrintEnabled = False 
   pdfFile.SecurityOptions.HighQualityPrintEnabled = False 
   pdfFile.SecurityOptions.EncryptionMode = PDFEncryptionMode.RC128Bit 
 
   ' Encrypt the file by saving it to the destination file 
   pdfFile.Convert(1, -1, destinationFileName) 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class

Requirements

Target Platforms

Reference

PDFSecurityOptions Class

PDFSecurityOptions Members

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Help Version 21.0.2021.7.6

Leadtools.Pdf Assembly

Introduction

Getting Started

Namespaces

Leadtools.Pdf Namespace

Assemblies