ByteScout PDF Suite – C# – Remove Text From Selected Regions

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ByteScout PDF Suite – C# – Remove Text From Selected Regions

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ByteScout-PDF-Suite-C-sharp-Remove-Text-From-Selected-Regions.pdf

How to remove text from selected regions in C# using ByteScout PDF Suite

This code in C# shows how to remove text from selected regions with this how to tutorial

On this page you will learn from code samples for programming in C#.Writing of the code to remove text from selected regions in C# can be executed by programmers of any level using 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. It can remove text from selected regions in C#.

Want to quickly learn? This fast application programming interfaces of ByteScout PDF Suite for C# plus the guidelines and the code below will help you quickly learn how to remove text from selected regions. Follow the instructions from scratch to work and copy the C# code. Applying C# application mostly includes various stages of the software development so even if the functionality works please test it with your data and the production environment.

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Form1.Designer.cs

      namespace Sample_UI_Application
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.pdfViewerControl1 = new Bytescout.PDFViewer.PDFViewerControl();
            this.toolStrip1 = new System.Windows.Forms.ToolStrip();
            this.tsbOpen = new System.Windows.Forms.ToolStripButton();
            this.btnRemoveTextInSelectedRegions = new System.Windows.Forms.Button();
            this.toolStrip1.SuspendLayout();
            this.SuspendLayout();
            // 
            // pdfViewerControl1
            // 
            this.pdfViewerControl1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
            | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.pdfViewerControl1.BackColor = System.Drawing.SystemColors.ButtonShadow;
            this.pdfViewerControl1.Location = new System.Drawing.Point(-13, 70);
            this.pdfViewerControl1.Margin = new System.Windows.Forms.Padding(4);
            this.pdfViewerControl1.MouseMode = Bytescout.PDFViewer.MouseMode.Selection;
            this.pdfViewerControl1.Name = "pdfViewerControl1";
            this.pdfViewerControl1.RegistrationKey = null;
            this.pdfViewerControl1.RegistrationName = null;
            this.pdfViewerControl1.ResetRotationOnPageChange = false;
            this.pdfViewerControl1.Scale = 100;
            this.pdfViewerControl1.SelectionColor = System.Drawing.Color.Red;
            this.pdfViewerControl1.ShowImageObjects = true;
            this.pdfViewerControl1.ShowTextObjects = true;
            this.pdfViewerControl1.ShowVectorObjects = true;
            this.pdfViewerControl1.Size = new System.Drawing.Size(1240, 662);
            this.pdfViewerControl1.TabIndex = 0;
            this.pdfViewerControl1.CurrentPageIndexChanged += new System.EventHandler(this.PdfViewerControl1_CurrentPageIndexChanged);
            this.pdfViewerControl1.SelectionChanged += new Bytescout.PDFViewer.SelectionChangedEventHandler(this.PdfViewerControl1_SelectionChanged);
            // 
            // toolStrip1
            // 
            this.toolStrip1.ImageScalingSize = new System.Drawing.Size(20, 20);
            this.toolStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.tsbOpen});
            this.toolStrip1.Location = new System.Drawing.Point(0, 0);
            this.toolStrip1.Name = "toolStrip1";
            this.toolStrip1.Size = new System.Drawing.Size(1240, 27);
            this.toolStrip1.TabIndex = 1;
            this.toolStrip1.Text = "toolStrip1";
            // 
            // tsbOpen
            // 
            this.tsbOpen.ImageTransparentColor = System.Drawing.Color.Magenta;
            this.tsbOpen.Name = "tsbOpen";
            this.tsbOpen.Size = new System.Drawing.Size(79, 24);
            this.tsbOpen.Text = "&Open PDF";
            this.tsbOpen.Click += new System.EventHandler(this.tsbOpen_Click);
            // 
            // btnRemoveTextInSelectedRegions
            // 
            this.btnRemoveTextInSelectedRegions.Font = new System.Drawing.Font("Microsoft Sans Serif", 10F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.btnRemoveTextInSelectedRegions.Location = new System.Drawing.Point(0, 30);
            this.btnRemoveTextInSelectedRegions.Name = "btnRemoveTextInSelectedRegions";
            this.btnRemoveTextInSelectedRegions.Size = new System.Drawing.Size(407, 33);
            this.btnRemoveTextInSelectedRegions.TabIndex = 2;
            this.btnRemoveTextInSelectedRegions.Text = "Remove Text in Selected Regions";
            this.btnRemoveTextInSelectedRegions.UseVisualStyleBackColor = true;
            this.btnRemoveTextInSelectedRegions.Click += new System.EventHandler(this.BtnRemoveTextInSelectedRegions_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(1240, 663);
            this.Controls.Add(this.btnRemoveTextInSelectedRegions);
            this.Controls.Add(this.pdfViewerControl1);
            this.Controls.Add(this.toolStrip1);
            this.Margin = new System.Windows.Forms.Padding(4);
            this.Name = "Form1";
            this.Text = "Form1";
            this.toolStrip1.ResumeLayout(false);
            this.toolStrip1.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private Bytescout.PDFViewer.PDFViewerControl pdfViewerControl1;
        private System.Windows.Forms.ToolStrip toolStrip1;
        private System.Windows.Forms.ToolStripButton tsbOpen;
        private System.Windows.Forms.Button btnRemoveTextInSelectedRegions;
    }
}

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Form1.cs

      using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Windows.Forms;
using Bytescout.PDFExtractor;
using Bytescout.PDFViewer;

namespace Sample_UI_Application
{
    public partial class Form1 : Form
    {
        // Dictionary to keep selected rectangles for all document pages
        private readonly Dictionary<int, RectangleF[]> _dictPageWiseRectangles = new Dictionary<int, RectangleF[]>();

        public Form1()
        {
            InitializeComponent();

            // Load sample document into PDF Viewer control
            pdfViewerControl1.InputFile = "sample.pdf";

            // Tune PDF Viewer control
            pdfViewerControl1.MouseMode = MouseMode.Selection;
            pdfViewerControl1.MultiSelectMode = true;
            pdfViewerControl1.AllowResizeSelectionRectangles = true;
            pdfViewerControl1.ShowResizeHandlesForActiveSelectionOnly = true;
        }

        private void tsbOpen_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.Title = @"Open PDF Document";
                openFileDialog.Filter = @"PDF Files (*.pdf)|*.pdf|All Files|*.*";

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    this.Text = openFileDialog.FileName;

                    Cursor = Cursors.WaitCursor;

                    try
                    {
                        pdfViewerControl1.InputFile = openFileDialog.FileName;
                    }
                    catch (Exception exception)
                    {
                        MessageBox.Show(exception.Message);
                    }
                    finally
                    {
                        Cursor = Cursors.Default;
                    }
                }
            }
        }

        private void BtnRemoveTextInSelectedRegions_Click(object sender, EventArgs e)
        {
            using (Remover2 remover = new Remover2("demo", "demo"))
            {
                remover.LoadDocumentFromFile(pdfViewerControl1.InputFile);

                foreach (KeyValuePair<int, RectangleF[]> keyValuePair in _dictPageWiseRectangles)
                    remover.AddTextToRemove(keyValuePair.Key, keyValuePair.Value);

                // Remove text from all selected rectangles
                remover.PerformRemoval("output.pdf");
            }

            pdfViewerControl1.CurrentPageIndex = 0;

            MessageBox.Show("Output file created successfully!", "Success");

            // Open output file
            Process.Start("output.pdf");
        }

        private void PdfViewerControl1_SelectionChanged(object sender, SelectionChange selectionChange, int selectionIndex)
        {
            // Store selection changes 
            if (selectionChange != SelectionChange.Cleared)
            {
                _dictPageWiseRectangles[pdfViewerControl1.CurrentPageIndex] = pdfViewerControl1.SelectionInPoints;
            }
        }

        private void PdfViewerControl1_CurrentPageIndexChanged(object sender, EventArgs e)
        {
            // Show stored selection on page switching
            if (_dictPageWiseRectangles.ContainsKey(pdfViewerControl1.CurrentPageIndex))
            {
                pdfViewerControl1.SelectionInPoints = _dictPageWiseRectangles[pdfViewerControl1.CurrentPageIndex];
            }
        }
    }
}

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60 Day Free Trial or Visit ByteScout PDF Suite Home Page

Explore ByteScout PDF Suite Documentation

Explore Samples

Sign Up for ByteScout PDF Suite Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

Program.cs

      using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace Sample_UI_Application
{
	static class Program
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main()
		{
			Application.EnableVisualStyles();
			Application.SetCompatibleTextRenderingDefault(false);
			Application.Run(new Form1());
		}
	}
}