First question is: why? Do you want to store the PDF file in a SQL Server table? Or is there data in the PDF file that you want to extract and import into SQL Server?
You'll need to use a program that converts PDF files to text or other formats. Google is your friend. Be warned (this is based on my past experience) they will extract text fine, but they WILL NOT retain any useful formatting. If you have tabular data in the PDF it will get all mashed together and you'll have difficulty identifying columns.