Important Update
Every ByteScout tool includes simple example ASP.NET C# source codes that you can get here or in the folder with installed ByteScout product. What is ByteScout Data Extraction Suite? It is the bundle that includes three SDK tools for data extraction from PDF, scans, images and from spreadsheets: PDF Extractor SDK, Data Extraction SDK, Barcode Reader SDK. It can help you to extract images from 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 images from PDF with PDF extractor SDK in ASP.NET C# with the help of ByteScout Data Extraction Suite. IF you want to implement the functionality, just copy and paste this code for ASP.NET C# below into your code editor with your app, compile and run your application. Further improvement of the code will make it more robust.
You can download free trial version of ByteScout Data Extraction Suite from our website to see and try many others source code samples for ASP.NET C#.
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<%@ 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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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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//------------------------------------------------------------------------------
// <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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<?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>
60 Day Free Trial or Visit ByteScout Data Extraction Suite Home Page
Explore ByteScout Data Extraction Suite Documentation
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Sign Up for ByteScout Data Extraction Suite Online Training
Get Your API Key
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60 Day Free Trial or Visit ByteScout Data Extraction Suite Home Page
Explore ByteScout Data Extraction Suite Documentation
Explore Samples
Sign Up for ByteScout Data Extraction Suite Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples
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