ByteScout PDF Extractor SDK - ASP.NET C# - Extract Images from PDF - ByteScout

ByteScout PDF Extractor SDK – ASP.NET C# – Extract Images from PDF

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How to extract images from PDF in ASP.NET C# using ByteScout PDF Extractor SDK

Write code in ASP.NET C# to extract images from PDF with this step-by-step tutorial

On this page you will learn from code samples for programming in ASP.NET C#.Writing of the code to extract images from PDF in ASP.NET C# can be done by developers of any level using ByteScout PDF Extractor SDK. ByteScout PDF Extractor SDK can extract images from PDF. It can be used from ASP.NET C#. ByteScout PDF Extractor SDK is the SDK is designed to help developers with pdf tables and pdf 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 other utilities.

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 your ASP.NET C# project or application you may simply copy & paste the code and then run your app! Detailed tutorials and documentation are available along with installed ByteScout PDF Extractor SDK if you’d like to dive deeper into the topic and the details of the API.

Our website provides trial version of ByteScout PDF Extractor SDK for free. It also includes documentation and source code samples.

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Default.aspx
      
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ExtractImages._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.Collections.Generic; using System.Drawing.Imaging; using System.IO; using Bytescout.PDFExtractor; namespace ExtractImages { /* 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\sample1.pdf"); // Create Bytescout.PDFExtractor.ImageExtractor instance ImageExtractor extractor = new ImageExtractor(); extractor.RegistrationName = "demo"; extractor.RegistrationKey = "demo"; // Load sample PDF document extractor.LoadDocumentFromFile(inputFile); // Array to keep extracted images List<byte[]> extractedImages = new List<byte[]>(); // Initialize image enumeration if (extractor.GetFirstImage()) { do { // Extract image to memory using (MemoryStream memoryStream = new MemoryStream()) { extractor.SaveCurrentImageToStream(memoryStream, ImageFormat.Png); // Keep image as byte array extractedImages.Add(memoryStream.ToArray()); } } while (extractor.GetNextImage()); // Advance image enumeration } // Write first image to the output stream Response.Clear(); Response.ContentType = "image/png"; Response.AddHeader("Content-Disposition", "inline;filename=image.png"); Response.BinaryWrite(extractedImages[0]); 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 ExtractAllImages { /// <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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