ByteScout Premium Suite – C# – Use pdf layers with pdf sdk

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ByteScout Premium Suite – C# – Use pdf layers with pdf sdk

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ByteScout-Premium-Suite-C-sharp-Use-pdf-layers-with-pdf-sdk.pdf

How to use pdf layers with pdf sdk in C# using ByteScout Premium Suite

If you want to learn more then this tutorial will show how to use pdf layers with pdf sdk in C#

ByteScout simple and easy to understand tutorials are planned to describe the code for both C# beginners and advanced programmers. ByteScout Premium Suite: the bundle that includes twelve SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording. It can use pdf layers with pdf sdk in C#.

This prolific sample source code in C# for ByteScout Premium Suite contains various functions and other necessary options you should do calling the API to use pdf layers with pdf sdk. Just copy and paste the code into your C# application’s code and follow the instructions. Use of ByteScout Premium Suite in C# is also described in the documentation included along with the product.

You can download free trial version of ByteScout Premium Suite from our website with this and other source code samples for C#.

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Program.cs

      using System.Diagnostics;
using System.Drawing;
using Bytescout.PDF;
using SolidBrush = Bytescout.PDF.SolidBrush;

namespace Layers
{
    /// <summary>
    /// This example demonstrates how to add layers with optional content.
    /// </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);

            Canvas canvas = page.Canvas;

            // Add main layer
            Layer allContents = new Layer("Main Layer");
            canvas.BeginMarkedContent(allContents);

            // Add sub-layer
            Layer layer1 = new Layer("Square");
            canvas.BeginMarkedContent(layer1);
            canvas.DrawRectangle(new SolidBrush(new ColorRGB(0, 255, 0)), 20, 20, 100, 100);
            canvas.EndMarkedContent();

            // Add second sub-layer
            Layer layer2 = new Layer("Circle");
            canvas.BeginMarkedContent(layer2);
            canvas.DrawCircle(new SolidBrush(new ColorRGB(255, 0, 0)), 70, 180, 50);
            canvas.EndMarkedContent();

            // Add third sub-layer
            Layer layer3 = new Layer("Triangle");
            canvas.BeginMarkedContent(layer3);
            canvas.DrawPolygon(new SolidBrush(new ColorRGB(0, 0, 255)), new PointF[] { new PointF(20, 340), new PointF(70, 240), new PointF(120, 340) });
            canvas.EndMarkedContent();

            canvas.EndMarkedContent();

            pdfDocument.OptionalContents.Layers.Add(layer1);
            pdfDocument.OptionalContents.Layers.Add(layer2);
            pdfDocument.OptionalContents.Layers.Add(layer3);
            pdfDocument.OptionalContents.Layers.Add(allContents);

            // Configure layers

            // Group sub-layers
            OptionalContentGroup group = new OptionalContentGroup();
            group.Add(new OptionalContentGroupLayer(layer1));
            group.Add(new OptionalContentGroupLayer(layer2));
            group.Add(new OptionalContentGroupLayer(layer3));

            // Order sub-layers
            pdfDocument.OptionalContents.Configuration.Order.Add(new OptionalContentGroupLayer(allContents));
            pdfDocument.OptionalContents.Configuration.Order.Add(group);

            // Make the third layer invisible by default (for example)
            pdfDocument.OptionalContents.Configuration.OFF.Add(layer3);

            // Force the PDF viewer to show the layers panel initially
            pdfDocument.PageMode = PageMode.OptionalContent;
            
            // Save document to file
            pdfDocument.Save("result.pdf");

            // Cleanup 
            pdfDocument.Dispose();

            // Open result document in default associated application (for demo purpose)
            ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
            processStartInfo.UseShellExecute = true;
            Process.Start(processStartInfo);
        }
    }
}