ByteScout Premium Suite – C# – Load existing pdf document with pdf sdk

Home
/
Articles
/
ByteScout Premium Suite – C# – Load existing pdf document with pdf sdk

printable version:
ByteScout-Premium-Suite-C-sharp-Load-existing-pdf-document-with-pdf-sdk.pdf

How to load existing pdf document with pdf sdk in C# and ByteScout Premium Suite

Learn to code in C# to load existing pdf document with pdf sdk with this step-by-step tutorial

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

The SDK samples given below describe how to quickly make your application do load existing pdf document with pdf sdk in C# with the help of ByteScout Premium Suite. Just copy and paste the code into your C# application’s code and follow the instructions. Enjoy writing a code with ready-to-use sample codes in C#.

You can download free trial version of ByteScout Premium Suite from our website to see and try many others source code samples for C#.

On-demand (REST Web API) version:
Web API (on-demand version)

On-premise offline SDK for Windows:
60 Day Free Trial (on-premise)

Program.cs

      using System.Diagnostics;
using Bytescout.PDF;

namespace LoadDocument
{
    /// <summary>
    /// This example demonstrates how to load and modify an existing document.
    /// </summary>
    class Program
    {
        static void Main()
        {
            // Create new Document object
            Document pdfDocument = new Document();
            pdfDocument.RegistrationName = "demo";
            pdfDocument.RegistrationKey = "demo";
            
            // Load existing document
            pdfDocument.Load("sample.pdf");
            
            // Add new page to loaded document
            Page page = new Page(PaperFormat.A4);
            Font font = new Font(StandardFonts.Times, 24);
            Brush brush = new SolidBrush();
            page.Canvas.DrawString("New Page", font, brush, 20, 20);
            pdfDocument.Pages.Add(page);
            
            // 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);
        }
    }
}