ByteScout PDF Extractor SDK - ASP.NET C# - Make PDF Unsearchable - ByteScout

ByteScout PDF Extractor SDK – ASP.NET C# – Make PDF Unsearchable

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How to make PDF unsearchable in ASP.NET C# with ByteScout PDF Extractor SDK

How to make PDF unsearchable in ASP.NET C#

We made thousands of pre-made source code pieces for easy implementation in your own programming projects. ByteScout PDF Extractor SDK 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 and you can use it to make PDF unsearchable with ASP.NET C#.

ASP.NET C# code samples for ASP.NET C# developers help to speed up coding of your application when using ByteScout PDF Extractor SDK. In order to implement the functionality, you should copy and paste this code for ASP.NET C# below into your code editor with your app, compile and run your application. Enjoy writing a code with ready-to-use sample ASP.NET C# codes.

You can download free trial version of ByteScout PDF Extractor SDK from our website to see and try many others source code samples for ASP.NET C#.

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Default.aspx
      
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="MakePDFUnsearchable._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.IO; using System.Web.UI; using Bytescout.PDFExtractor; namespace MakePDFUnsearchable { 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.UnsearchablePDFMaker instance UnsearchablePDFMaker unsearchablePDFMaker = new UnsearchablePDFMaker(); unsearchablePDFMaker.RegistrationName = "demo"; unsearchablePDFMaker.RegistrationKey = "demo"; // Load sample PDF document unsearchablePDFMaker.LoadDocumentFromFile(inputFile); // Set PDF rendering resolution to 150 DPI. Higher value - better quality, but larger output file. unsearchablePDFMaker.RenderingResolution = 150; // Set embedded images format unsearchablePDFMaker.ImageFormat = EmbeddedImageFormat.PNG; Response.Clear(); Response.ContentType = "application/pdf"; Response.AddHeader("Content-Disposition", "attachment;filename=result.pdf"); // Process document and write result to temporary stream. byte[] resultBytes; using (MemoryStream tempStream = new MemoryStream()) { unsearchablePDFMaker.MakePDFUnsearchable(tempStream); resultBytes = tempStream.ToArray(); } // Write result bytes to the output stream Response.BinaryWrite(resultBytes); Response.End(); } } }

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Default.aspx.designer.cs
      
//------------------------------------------------------------------------------ // <auto-generated> // This code was generated by a tool. // Runtime Version:2.0.50727.42 // // Changes to this file may cause incorrect behavior and will be lost if // the code is regenerated. // </auto-generated> //------------------------------------------------------------------------------ namespace MakeUnsearchablePDF { public partial class _Default { protected 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" targetFramework="4.0"/> <!-- 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> --> <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/> </system.web> </configuration>

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