How to set password protection and security settings for new PDF document generated with ByteScout PDF SDK

Applying security settings and password protection to new PDF documents generated with ByteScout PDF SDK

This example demonstrates how to add password protection and set permissions for new PDF document produced using ByteScout PDF SDK

PDF format supports two kinds of passwords: owner and user password.
User password allows to view document and perform allowed actions.
Owner password allows everything, including changing passwords and permissions.

Program.vb:
VB

'*******************************************************************
'       ByteScout PDF SDK
'                                                                   
'       Copyright © 2016 Bytescout, https://bytescout.com        
'       ALL RIGHTS RESERVED                                         
'                                                                   
'*******************************************************************

Imports Bytescout.PDF

''' <summary>
''' This example demonstrates how to lock the document with a password. 
''' PDF format supports two kinds of passwords: owner and user password.
''' User password allows to view document and perform allowed actions.
''' Owner password allows everything, including changing passwords and permissions.
''' </summary>
Class Program

    Shared Sub Main()

        ' Create new document
        Dim pdfDocument = New Document()
        pdfDocument.RegistrationName = "demo"
		pdfDocument.RegistrationKey = "demo"
        ' Add page
        pdfDocument.Pages.Add(New Page(PaperFormat.A4))


        ' Set document encryption algorythm
        pdfDocument.Security.EncryptionAlgorithm = EncryptionAlgorithm.RC4_40bit
        ' Set various user permissions
        pdfDocument.Security.AllowPrintDocument = False
        pdfDocument.Security.AllowContentExtraction = False
        pdfDocument.Security.AllowModifyAnnotations = False
        pdfDocument.Security.PrintQuality = PrintQuality.LowResolution

        ' Set owner password
        pdfDocument.Security.OwnerPassword = "ownerpassword"

        ' Set user password
        pdfDocument.Security.UserPassword = "userpassword"


        ' Save document to file
        pdfDocument.Save("result.pdf")

        ' Cleanup 
		pdfDocument.Dispose()

        ' Open document in default PDF viewer app
        Process.Start("result.pdf")

    End Sub

End Class 

Program.cs:
C#

//*******************************************************************
//       ByteScout PDF SDK		                                     
//                                                                   
//       Copyright © 2016 ByteScout - https://bytescout.com       
//       ALL RIGHTS RESERVED                                         
//                                                                   
//*******************************************************************

using System.Diagnostics;
using Bytescout.PDF;

namespace PasswordsAndPermissions
{
	/// <summary>
	/// This example demonstrates how to lock the document with a password. 
	/// PDF format supports two kinds of passwords: owner and user password.
	/// User password allows to view document and perform allowed actions.
	/// Owner password allows everything, including changing passwords and permissions.
	/// </summary>
	class Program
	{
		static void Main()
		{
			// Create new document
			Document pdfDocument = new Document();
			pdfDocument.RegistrationName = "demo";
			pdfDocument.RegistrationKey = "demo";
			// Add page
			pdfDocument.Pages.Add(new Page(PaperFormat.A4));


			// Set document encryption algorythm
			pdfDocument.Security.EncryptionAlgorithm = EncryptionAlgorithm.RC4_40bit;
			// Set various user permissions
			pdfDocument.Security.AllowPrintDocument = false;
			pdfDocument.Security.AllowContentExtraction = false;
			pdfDocument.Security.AllowModifyAnnotations = false;
			pdfDocument.Security.PrintQuality = PrintQuality.LowResolution;
			
			// Set owner password
			pdfDocument.Security.OwnerPassword = "ownerpassword";
			
			// Set user password
			pdfDocument.Security.UserPassword = "userpassword";
			
			
			// Save document to file
			pdfDocument.Save("result.pdf");

			// Cleanup 
			pdfDocument.Dispose();

			// Open document in default PDF viewer app
			Process.Start("result.pdf");
		}
	}
} 

.