Convetor html to xml and html to pdf

I want to convert an html file to pdf file without changing the format of intenal data in html file.I don't what will be format of the data in html data or what data it will contain.How can i do this?

Q1 )will Itext jar will help me in this?
Q2) Is this possiable to read the bytes from html file and copy into another file and change its format to PDF ?

You can't just read bytes and port them straight over. You need 3 pieces:

1) A piece that can parse HTML and understand the semantics of each of its semantic elements.

2) A piece that understands the semantics of PDF's layout elements and can write them out.

3) A piece to convert from #1 to #2.

If the HTML happens to be CSS-styled XHTML, then the FlyingSaucer library can do this.

If it's not , then iText can help you with #2 in Jeff's list.

Use this html to pdf converter to create your own service to call from application. Hope it helps.