ByteScout Premium Suite – ASP.NET C# – Extract Text From Page Area in PDF with PDF Extractor SDK

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ByteScout Premium Suite – ASP.NET C# – Extract Text From Page Area in PDF with PDF Extractor SDK

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How to extract text from page area in PDF with PDF extractor SDK in ASP.NET C# and ByteScout Premium Suite

Continuous learning is a crucial part of computer science and this tutorial shows how to extract text from page area in PDF with PDF extractor SDK in ASP.NET C#

An easy to understand sample source code to learn how to extract text from page area in PDF with PDF extractor SDK in ASP.NET C# What is ByteScout Premium Suite? It is the bundle that includes twelve SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording. It can help you to extract text from page area in PDF with PDF extractor SDK in your ASP.NET C# application.

The SDK samples given below describe how to quickly make your application do extract text from page area in PDF with PDF extractor SDK in ASP.NET C# with the help of ByteScout Premium Suite. Just copy and paste the code into your ASP.NET C# application’s code and follow the instructions. Want to see how it works with your data then code testing will allow the function to be tested and work properly.

You can download free trial version of ByteScout Premium Suite from our website with this and other source code samples for ASP.NET C#.

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Default.aspx

      <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ExtractTextFromPageArea._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    </div>
    </form>
</body>
</html>

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Default.aspx.cs

      using System;
using System.Drawing;
using Bytescout.PDFExtractor;

namespace ExtractTextFromPageArea
{
    /*
    IF YOU SEE TEMPORARY FOLDER ACCESS ERRORS: 

    Temporary folder access is required for web application when you use ByteScout SDK in it.
    If you are getting errors related to the access to temporary folder like "Access to the path 'C:\Windows\TEMP\... is denied" then you need to add permission for this temporary folder to make ByteScout SDK working on that machine and IIS configuration because ByteScout SDK requires access to temp folder to cache some of its data for more efficient work.

    SOLUTION:

    If your IIS Application Pool has "Load User Profile" option enabled the IIS provides access to user's temp folder. Check user's temporary folder

    If you are running Web Application under an impersonated account or IIS_IUSRS group, IIS may redirect all requests into separate temp folder like "c:\temp\".

    In this case
    - check the User or User Group your web application is running under
    - then add permissions for this User or User Group to read and write into that temp folder (c:\temp or c:\windows\temp\ folder)
    - restart your web application and try again

    */

	public partial class _Default : System.Web.UI.Page
	{
		protected void Page_Load(object sender, EventArgs e)
		{
			String inputFile = Server.MapPath(@".\bin\columns.pdf");

			// Create Bytescout.PDFExtractor.TextExtractor instance
			TextExtractor extractor = new TextExtractor();
			extractor.RegistrationName = "demo";
			extractor.RegistrationKey = "demo";
			
			// Load sample PDF document
			extractor.LoadDocumentFromFile(inputFile);

			// Get dimensions of the first document page
			RectangleF rectangle = extractor.GetPageRectangle(0);

			// Get text from the 1/3 of the page

			rectangle.Width = rectangle.Width / 3f;
			
			Response.Clear();
			Response.ContentType = "text/html";

			extractor.SetExtractionArea(rectangle);

			Response.Write("<pre>");

			// Save extracted text to output stream
			extractor.SavePageTextToStream(0, Response.OutputStream);

			Response.Write("</pre>");
			
			Response.End();
		}
	}
}

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Default.aspx.designer.cs

      //------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:2.0.50727.4952
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace ExtractAllText {
    
    
    /// <summary>
    /// _Default class.
    /// </summary>
    /// <remarks>
    /// Auto-generated class.
    /// </remarks>
    public partial class _Default {
        
        /// <summary>
        /// form1 control.
        /// </summary>
        /// <remarks>
        /// Auto-generated field.
        /// To modify move field declaration from designer file to code-behind file.
        /// </remarks>
        protected global::System.Web.UI.HtmlControls.HtmlForm form1;
    }
}

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Web.config

      <?xml version="1.0"?>

<configuration>
  
    <appSettings/>
    <connectionStrings/>
  
    <system.web>
        <!-- 
            Set compilation debug="true" to insert debugging 
            symbols into the compiled page. Because this 
            affects performance, set this value to true only 
            during development.
        -->
        <compilation debug="true" />
        <!--
            The <authentication> section enables configuration 
            of the security authentication mode used by 
            ASP.NET to identify an incoming user. 
        -->
        <authentication mode="Windows" />
        <!--
            The <customErrors> section enables configuration 
            of what to do if/when an unhandled error occurs 
            during the execution of a request. Specifically, 
            it enables developers to configure html error pages 
            to be displayed in place of a error stack trace.

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>
        -->
    </system.web>
</configuration>