HACK PDF Documents tutorial (for educational purposes only)

Hello everyone, maybe you have heard that some people have been hacked with PDF documents !
And i am here to tell you : Doubt no more, it is actually possible, but HOW ?

So actually a pdf file has the following form :

And YES as some of you have correctly guessed a PDF file embarks javascript code with it, this means that you can actually insert javascript code in your PDF file to perform actions when someone opens the document for example !!! Amazing right ?

But don't worry there is a way to protect yourself against it !
Simply don't use Adobe Reader , Chrome or Windows 8 Lector to read PDF files.

Oh you came here with bad intentions to see how to hack people, no no way sorry i have said enough for now!
Stay tuned folks !