hmm , sir or mam, we are having our thesis this semester ., it is a web portal for our school, one of its capabilities is that the student can download there grade in the web, the file extension of the downloadable grade is a .doc file , but our panelist wants that the downloadable grade is in a .pdf extension, the grades of the students are save in our sql database .,

how can we make the downloadable link into a pdf file ?
need some suggestions ., it will be highly appreciated .,