How to create checkbox control in PDF document using ByteScout PDF SDK

Adding a text labels wih page numbers to each page of PDF document

The example demonstrates how to create checkboxes 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 checkboxes.
''' </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 unchecked checkbox
        Dim checkBox1 = New CheckBox(20, 20, 15, 15, "checkBox1")
        page.Annotations.Add(checkBox1)

        ' Add checked checkbox
        Dim checkBox2 = New CheckBox(20, 40, 15, 15, "checkBox2")
        checkBox2.Checked = True
        page.Annotations.Add(checkBox2)

        ' Add readonly checkbox
        Dim checkBox3 = New CheckBox(20, 60, 15, 15, "checkBox3")
        checkBox3.Checked = True
        checkBox3.ReadOnly = True
        page.Annotations.Add(checkBox3)

        ' Draw text labels
        Dim font = New Font(StandardFonts.Times, 12)
        Dim brush = New SolidBrush()
        page.Canvas.DrawString("Unchecked box", font, brush, 45, 20)
        page.Canvas.DrawString("Checked box", font, brush, 45, 40)
        page.Canvas.DrawString("Read-only checked box", font, brush, 45, 60)

        ' 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 CheckBoxes
{
	/// <summary>
	/// This example demonstrates how to create checkboxes.
	/// </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 unchecked checkbox
			CheckBox checkBox1 = new CheckBox(20, 20, 15, 15, "checkBox1");
			page.Annotations.Add(checkBox1);
			
			// Add checked checkbox
			CheckBox checkBox2 = new CheckBox(20, 40, 15, 15, "checkBox2");
			checkBox2.Checked = true;
			page.Annotations.Add(checkBox2);
			
			// Add readonly checkbox
			CheckBox checkBox3 = new CheckBox(20, 60, 15, 15, "checkBox3");
			checkBox3.Checked = true;
			checkBox3.ReadOnly = true;
			page.Annotations.Add(checkBox3);
			
			// Draw text labels
			Font font = new Font(StandardFonts.Times, 12);
			Brush brush = new SolidBrush();
			page.Canvas.DrawString("Unchecked box", font, brush, 45, 20);
			page.Canvas.DrawString("Checked box", font, brush, 45, 40);
			page.Canvas.DrawString("Read-only checked box", font, brush, 45, 60);
			
			// Save document to file
			pdfDocument.Save("result.pdf");

			// Cleanup 
			pdfDocument.Dispose();

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