ASP.Net - Export PDF to Jpeg in C# and VB .Net

ASP.Net - Export PDF to Jpeg in C# and VB .Net

This ASP.Net application converts 1st page of PDF document into JPEG-image with quality of 200 dpi. The conversion process is completely done in memory using array of bytes.

Complete code.

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Result.Text = "";
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (FileUpload1.PostedFile.FileName.Length == 0 || FileUpload1.FileBytes.Length == 0)
        {
            Result.Text = "Please select PDF file at first!";
            return;
        }
        Result.Text = "Converting ...";

        SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();
		//this property is necessary only for registered version
		//f.Serial = "XXXXXXXXXXX";
		
        f.OpenPdf(FileUpload1.FileBytes);

        if (f.PageCount > 0)
        {
            //set image properties
            f.ImageOptions.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
            f.ImageOptions.Dpi = 200;

            //Let's convert 1st page from PDF document
            byte[] image = f.ToImage(1);

            //show image
            Response.Buffer = true;
            Response.Clear();
            Response.ContentType = "image/jpeg";
            Response.AddHeader("content-disposition", "attachment; filename=Page1.jpg");
            Response.BinaryWrite(image);
            Response.Flush();
            Response.End();
        }
        else
        {
            Result.Text = "Converting failed!";
        }
    }
}

Download.

        
            Imports System
Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.IO

Partial Public Class _Default
    Inherits System.Web.UI.Page
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        Result.Text = ""
    End Sub
    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)
        If FileUpload1.PostedFile.FileName.Length = 0 OrElse FileUpload1.FileBytes.Length = 0 Then
            Result.Text = "Please select PDF file at first!"
            Return
        End If

        Dim f As New SautinSoft.PdfFocus()
        'this property is necessary only for registered version
        'f.Serial = "XXXXXXXXXXX"

        f.OpenPdf(FileUpload1.FileBytes)

        If f.PageCount > 0 Then

            'set image properties
            f.ImageOptions.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg
            f.ImageOptions.Dpi = 200
            'Let's convert 1st page from PDF document
            Dim image() As Byte = f.ToImage(1)

            'show image
            Response.Buffer = True
            Response.Clear()
            Response.ContentType = "image/jpeg"
            Response.AddHeader("content-disposition", "attachment; filename=Page1.jpg")
            Response.BinaryWrite(image)
            Response.Flush()
            Response.End()
        Else
            Result.Text = "Converting failed!"
        End If
    End Sub
End Class

Download.


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We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.