i am creating a pdf file using fpdf, and trying to upload that file to the server

[eluser]TheFuzzy0ne[/eluser]
Why are you using a form and requiring an uploaded file? I don't understand -- where does this report come from? Are you generating it from an uploaded file, or are you generating it from the database, or somewhere else?

If you're not wanting to upload a file, then you don't need to use the upload library.