I am sorry if I am mistaken but I don't know if it is possible to insert a full PDF file into a database. But I might be wrong. My other question would be, why would you need a PDF file stored in a database? Could you store the PDF file on your computer/server and then possibly store the file location in the database and then display the file when you need to display the PDF?
storing or saving pdf file is the best way to know, actually i manually type the information to my system based on my pdf information but through database i want to store the pdf file to my database. it's a part of evidence or a prove right?. what if i'm going to save a file path on my database... then accidentally deleted the pdf file???