How to change security permissions (allow or disallow printing, copying etc) of existing PDF document using ByteScout PDF SDK

Changing security permissions of existing PDF document using Bytescout.PDF

This example demonstrates how to create a document and save it to file using ByteScout PDF SDK.

Program.vb:

VB

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

Imports Bytescout.PDF

''' <summary>
''' This example demonstrates how to create a document and save it to file.
''' </summary>
Class Program

    Shared Sub Main()

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

        ' Add sample content
        Dim font = New Font(StandardFonts.Times, 24)
        Dim brush = New SolidBrush()
        page.Canvas.DrawString("Hello world!", font, brush, 20, 20)

        ' 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 CreateDocument
{
	/// <summary>
	/// This example demonstrates how to create a document and save it to file.
	/// </summary>
	class Program
	{
		static void Main()
		{
			// Create new document
			Document pdfDocument = new Document();
			pdfDocument.RegistrationName = "demo";
			pdfDocument.RegistrationKey = "demo";
			// Add page
			Page page = new Page(PaperFormat.A4);
			pdfDocument.Pages.Add(page);
			
			// Add sample content
			Font font = new Font(StandardFonts.Times, 24);
			Brush brush = new SolidBrush();
			page.Canvas.DrawString("Hello world!", font, brush, 20, 20);
			
			// Save document to file
			pdfDocument.Save("result.pdf");

			// Cleanup 
			pdfDocument.Dispose();

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