ByteScout PDF Extractor SDK - ASP.NET C# - Find Text in PDF - ByteScout

ByteScout PDF Extractor SDK – ASP.NET C# – Find Text in PDF

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How to find text in PDF in ASP.NET C# with ByteScout PDF Extractor SDK

How to find text in PDF in ASP.NET C#

These source code samples are listed and grouped by their programming language and functions they use. What is ByteScout PDF Extractor SDK? It is the Software Development Kit (SDK) that is designed to help developers with data extraction from unstructured documents like pdf, tiff, scans, images, scanned and electronic forms. The library is powered by OCR, computer vision and AI to provide unique functionality like table detection, automatic table structure extraction, data restoration, data restructuring and reconstruction. Supports PDF, TIFF, PNG, JPG images as input and can output CSV, XML, JSON formatted data. Includes full set of utilities like pdf splitter, pdf merger, searchable pdf maker. It can help you to find text in PDF in your ASP.NET C# application.

This rich sample source code in ASP.NET C# for ByteScout PDF Extractor SDK includes the number of functions and options you should do calling the API to find text in PDF. Follow the instructions from the scratch to work and copy the ASP.NET C# code. Test ASP.NET C# sample code examples whether they respond your needs and requirements for the project.

Trial version of ByteScout PDF Extractor SDK is available for free. Source code samples are included to help you with your ASP.NET C# app.

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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>

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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(); } } }

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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 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; } }

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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>

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