How to open PDF raw?
I've been wanting to see the insides of a PDF for a while, like, the raw source code of it so I can look at it. Any way of doing that? Oswald Use a Hex editor . Of course, unless you know the PDF specification (PDF, 8.6 MB), you won't recognize much. Looking at the raw code of PDFs will not serve you much unless you also have an idea about its internal structure. You should get yourself a copy of the official PDF reference (download PDF) , and you should have read some introductionary article such as this [gone] or this to begin with. Even after such a preparation, you'll not discover much