ByteScout PDF Suite – C# – Rendering pdf to image in background thread with pdf renderer sdk

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ByteScout PDF Suite – C# – Rendering pdf to image in background thread with pdf renderer sdk

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ByteScout-PDF-Suite-C-sharp-Rendering-pdf-to-image-in-background-thread-with-pdf-renderer-sdk.pdf

rendering pdf to image in background thread with pdf renderer sdk in C# and ByteScout PDF Suite

rendering pdf to image in background thread with pdf renderer sdk in C#

ByteScout tutorials describe the stuff for programmers who use C#. Rendering pdf to image in background thread with pdf renderer sdk in C# can be applied with ByteScout PDF Suite. 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.

C# code snippet like this for ByteScout PDF Suite works best when you need to quickly implement rendering pdf to image in background thread with pdf renderer sdk in your C# application. To use rendering pdf to image in background thread with pdf renderer sdk in your C# project or application just copy & paste the code and then run your app! These C# sample examples can be used in one or many applications.

Visit our website to get a free trial version of ByteScout PDF Suite. Free trial contains many of source code samples to help you with your C# project.

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Program.cs

      using System;
using System.IO;
using System.Threading;
using Bytescout.PDFRenderer;

namespace RenderingInBackgroundThread
{
    class Program
    {
        private static ManualResetEvent _doneEvent = new ManualResetEvent(false); // synchronization event
        private static int _counter; // thread counter

        static void Main(string[] args)
        {
            // Get all PDF files in current directory
            string[] pdfFiles = Directory.GetFiles(".", "*.pdf");
            _counter = pdfFiles.Length;

            // Render PDF files in separate threads
            foreach (string pdfFile in pdfFiles)
            {
                Thread backgroundThread = new Thread(BackgroundThreadProc);
                backgroundThread.Start(pdfFile);
                Console.WriteLine(pdfFile + " - conversion started.");
            }

            // Wait until threads finished
            _doneEvent.WaitOne();
            
            Console.WriteLine("Done.");
            Console.WriteLine();
            Console.WriteLine("Press any key to continue...");
            Console.ReadKey();
        }

        // Rendering thread function
        private static void BackgroundThreadProc(object data)
        {
            string fileName = (string) data;

            try
            {
                // Create renderer
                using (RasterRenderer renderer = new RasterRenderer())
                {
                    renderer.LoadDocumentFromFile(fileName);
                    
                    // Setup rendering
                    RenderingOptions renderingOptions = new RenderingOptions();
                    renderingOptions.JPEGQuality = 90;

                    float renderingResolution = 300;
                    
                    // Render document pages
                    for (int i = 0; i < renderer.GetPageCount(); i++)
                    {
                        renderer.Save(fileName + ".page" + i + ".jpg", RasterImageFormat.JPEG, i, renderingResolution, renderingOptions);
                    }
                }

                Console.WriteLine(fileName + " - successfully converted.");
            }
            catch (Exception exception)
            {
                Console.WriteLine(exception.ToString());
            }

            if (Interlocked.Decrement(ref _counter) == 0)
            {
                // Set event if all threads finished
                _doneEvent.Set();
            }
        }
    }
}