ByteScout PDF Suite – C# – Make thumbnail from pdf with pdf renderer sdk

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ByteScout PDF Suite – C# – Make thumbnail from pdf with pdf renderer sdk

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ByteScout-PDF-Suite-C-sharp-Make-thumbnail-from-pdf-with-pdf-renderer-sdk.pdf

How to make thumbnail from pdf with pdf renderer sdk in C# and ByteScout PDF Suite

Continuous learning is a crucial part of computer science and this tutorial shows how to make thumbnail from pdf with pdf renderer sdk in C#

Sample source code below will display you how to manage a complex task like make thumbnail from pdf with pdf renderer sdk in C#. ByteScout PDF Suite can make thumbnail from pdf with pdf renderer sdk. It can be applied from C#. ByteScout PDF Suite is the bundle that provides six different SDK libraries to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript.

The SDK samples given below describe how to quickly make your application do make thumbnail from pdf with pdf renderer sdk in C# with the help of ByteScout PDF Suite. Follow the instructions from scratch to work and copy the C# code. Use of ByteScout PDF Suite in C# is also described in the documentation included along with the product.

The trial version of ByteScout PDF Suite can be downloaded for free from our website. It also includes source code samples for C# and other programming languages.

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Program.cs

      using System.Drawing;
using System.Diagnostics;
using Bytescout.PDFRenderer;

namespace MakeThumbnail
{
    static class Program
    {
        static void Main()
        {
            // Create an instance of Bytescout.PDFRenderer.RasterRenderer object and register it
            RasterRenderer renderer = new RasterRenderer();
            renderer.RegistrationName = "demo";
            renderer.RegistrationKey = "demo";

            // Load PDF document
            renderer.LoadDocumentFromFile("multipage.pdf");

            // Get size of the page in Points (standard PDF document units; 1 Point = 1/72")
            RectangleF rectangle = renderer.GetPageRectangle(0);

            int width, height;

            if (rectangle.Width < rectangle.Height) // portrait page orientation
            {
                width = -1; // width will be calculated from height keeping the aspect ratio
                height = 100;
            }
            else // landscape page orientation
            {
                width = 100;
                height = -1; // height will be calculated from width keeping the aspect ratio
            }
            
            // Render first page of the document to JPEG image file
            renderer.Save("thumbnail.jpg", RasterImageFormat.JPEG, 0, width, height);

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