how to retraive pdf file from sql server please give proper answer

Please find the attached project. Here is the my table script.

create table uploadtest
(
id int primary key,
filename varchar(500),
filecontent varbinary(max)
)

For demo purposes i have set to upload and download one file only.

Also i have used Entity framework, if you are using stored procedures, create a class with the above columns as properties and set the values or directly pass the stored proc content to filename and file content

Please dont forget to mark my answer as accepted if it works.