ByteScout Premium Suite – C# – Hide Images In PDF Document

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ByteScout Premium Suite – C# – Hide Images In PDF Document

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ByteScout-Premium-Suite-C-sharp-Hide-Images-In-PDF-Document.pdf

hide images in PDF document in C# and ByteScout Premium Suite

hide images in PDF document in C#

We regularly create and update our sample code library so you may quickly learn hide images in PDF document and the step-by-step process in C#. ByteScout Premium Suite was made to help with hide images in PDF document in C#. ByteScout Premium Suite is the set that includes 12 SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording.

Want to speed up the application development? Then this C#, code samples for C#, developers help to speed up the application development and writing a code when using ByteScout Premium Suite. Follow the steps-by-step instructions from the scratch to work and copy and paste code for C# into your editor. Further improvement of the code will make it more robust.

If you want to try other samples for C# then free trial version of ByteScout Premium Suite is available on our website.

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Program.cs

      using System.Diagnostics;
using System.Drawing;
using Bytescout.PDF;
using Bytescout.PDFExtractor;
using Image = Bytescout.PDF.Image;


namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            string inputPdfDocument = @".\sample.pdf";
            string maskingImage = @".\mask.png";
            string resultPdfDocument = @".\result.pdf";


            // Create Bytescout.PDFExtractor.ImageExtractor instance
            using (ImageExtractor imageExtractor = new ImageExtractor())
            {
                imageExtractor.RegistrationName = "demo";
                imageExtractor.RegistrationKey = "demo";

                // Load document
                imageExtractor.LoadDocumentFromFile(inputPdfDocument);

                // Create Bytescout.PDF.Document instance
                using (Document pdfDocument = new Document())
                {
                    pdfDocument.RegistrationName = "demo";
                    pdfDocument.RegistrationKey = "demo";

                    // Load document
                    pdfDocument.Load(inputPdfDocument);
                    
                    // Load masking image
                    var maskImage = new Image(maskingImage);

                    // Process pages
                    for (int i = 0; i < pdfDocument.Pages.Count; i++)
                    {
                        Page page = pdfDocument.Pages[i];

                        // Find images on the page
                        if (imageExtractor.GetFirstPageImage(i))
                        {
                            do
                            {
                                // Get image rectangle
                                var imageRect = imageExtractor.GetCurrentImageRectangle();
                                
                                // Draw new image other the found image
                                page.Canvas.DrawImage(maskImage, imageRect.Left, imageRect.Top, imageRect.Width, imageRect.Height);

                            } while (imageExtractor.GetNextImage());
                        }
                    }

                    // Save modified document
                    pdfDocument.Save(resultPdfDocument);
                }
            }

            // Open document in default PDF viewer application (for demonstration).
            Process.Start(resultPdfDocument);
        }
    }
}