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Find Text in PDF - ASP.NET C#

PDF Extractor SDK sample in ASP.NET C# demonstrating ‘Find Text in PDF’

View on GitHub Download Source Code (.zip)
Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="FindText._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>
Default.aspx.cs
using System;
using Bytescout.PDFExtractor;

namespace FindText
{
    public partial class _Default : System.Web.UI.Page
    {
        /*
        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

        */

        protected void Page_Load(object sender, EventArgs e)
        {
            String inputFile = Server.MapPath(@".\bin\sample1.pdf");

            // Create Bytescout.PDFExtractor.TextExtractor instance
            TextExtractor extractor = new TextExtractor();
            extractor.RegistrationName = "demo";
            extractor.RegistrationKey = "demo";
            
            // Load sample PDF document
            extractor.LoadDocumentFromFile(inputFile);
            
            // Set the matching mode.
            // WordMatchingMode.None - treats the search string as substring
            // WordMatchingMode.ExactMatch - treats the search string as separate word
            // WordMatchingMode.SmartMatch - will find the word in various forms (like Adobe Reader).
            extractor.WordMatchingMode = WordMatchingMode.ExactMatch;

            Response.Clear();
            Response.ContentType = "text/html";

            Response.Write("Searching for \"ipsum\" string:<br>");
            
            // Search for "ipsum" string
            if (extractor.Find(0, "ipsum", false))
            {
                do
                {
                    Response.Write("<br/>");
                    Response.Write("Found on page 1 at location " + extractor.FoundText.Bounds + "<br/>");
                    Response.Write("<br/>");
                    
                    // The found text may be splitted to parts.
                    // Iterate through each part of the found text.
                    for (var i = 0; i < extractor.FoundText.Elements.Count; i++)
                    {
                        ISearchResultElement element = extractor.FoundText.Elements[i];
                        
                        Response.Write("Element #" + i + " at " + element.Bounds + "<br/>");
                        Response.Write("Text: " + element.Text + "<br/>");
                        Response.Write("Font is bold: " + element.FontIsBold + "<br/>");
                        Response.Write("Font is italic:" + element.FontIsItalic + "<br/>");
                        Response.Write("Font name: " + element.FontName + "<br/>");
                        Response.Write("Font size:" + element.FontSize + "<br/>");
                        Response.Write("Font color:" + element.FontColor + "<br/>");
                    }
                }
                while (extractor.FindNext());
            }

            Response.End();
        }
    }
}
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 FindText

{

    

    

    /// <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;

    }

}

Download Source Code (.zip)

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