You will need to copy the type library from corelDRAW: C:\Program Files (x86)\Corel\CorelDRAW Graphics Suite 13\Programs\CorelDraw.tlb into your /bin folder and create a reference to it. Once you have done this you should be able to export .CDR files to many different formats. The sample code below converts .cdr to .png.

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using CorelDRAW;

namespace WebApplication1
{
public partial class _Default : System.Web.UI.Page
{
protected void Button1_Click(object sender, EventArgs e)
{
CorelDRAW.Application cdr =
new Application();

cdr.OpenDocument(@"C:\Users\user\Desktop\500074.cdr", 1);
cdr.ActiveDocument.ExportBitmap(
@"C:\Users\user\Desktop\newImage.png",
CorelDRAW.cdrFilter.cdrPNG,
CorelDRAW.cdrExportRange.cdrCurrentPage,
CorelDRAW.cdrImageType.cdrRGBColorImage,
0, 0, 72, 72,
CorelDRAW.cdrAntiAliasingType.cdrNoAntiAliasing,
false,
true,
true,
false,
CorelDRAW.cdrCompressionType.cdrCompressionNone,
null).Finish();
cdr.ActiveDocument.Close();
cdr.Quit();
}

protected void Page_Load(object sender, EventArgs e)
{

}
}
}

This code would convert the .cdr to .pdf:

protected void Button2_Click(object sender, EventArgs e)
{
CorelDRAW.Application cdr =
new Application();

cdr.OpenDocument(@"C:\Users\user\Desktop\500074.cdr", 1);
cdr.ActiveDocument.PublishToPDF(@"C:\Users\user\Desktop\NewImage.pdf");
cdr.ActiveDocument.Close();
cdr.Quit();
}

引用原文件链接：http://stackoverflow.com/questions/4864765/convert-cdr-corel-draw-using-net

如何转换cdr文件