How to read the form fields in pdf file using asp.net

I have a website in which the user will upload a pdf.
The pdf file will have a form having multiple fileds and controls including drop down, text box and date controls.
All the controls in the pdf are data bound from a xml file.
I want to read the values filled by the user in those controls from my web application.


Please help me in this regard.


Thanks
Shubha



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