I was trying to figure out in IText open source code that what has been done special for generation of PDF document. I have seen it writes to the ouput stream. But what is the special input it has given to generate a valid PDF document? If any one can clarify it.
I'm not quite sure what you're asking, but PDF is a rather complex file format - the PDF specification (available on Adobe's web site) is many hundreds of pages long. So there's lots and lots of things a PDF-generating library needs to do in order to create a valid PDF document. Does this answer your question?
Thanks Ulf, Yes even I am trying to figure out the same in Itext source code. But Its really hard to find out the things which are used specifically for PDF generations. Learning such kind of stuff is hard but I am loving it.