read pdf file with original contents

I want to read pdf file with orig开发者_如何学Goinal content like its font(its possible that some font size is small while some font size is big ) and paragraph and table if it is.

how its possible.

plz help.

---

You want a library such as jPod, which can parse PDF documents back into the structure they were generated from. The PDF specification is seriously complex, but if you just want to scrape text and maybe a font size or two, that shouldn't be too hard to do.