i want to Save a Web Page as Jpeg Format

 Hii all
I have a WebForm,Where there are someImages and also some text.
I want to Save the WebPage as Imageformat
I tried writing the code,as i had seen in one of the posts
But it gave me Object Refrence not set to an instance of object
 
Please can anybody help in writing the code in vb.net?
I want the code from the start
Pleasee...
 
Thanks & Regards
Bindu

 
 
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