I went through adobe's documentation but it seems vague to me since I am just starting with this stuff. I assume that pdf doc must be arranged using some basic tags like a html is. so if I have a simple "hello world" in a pdf how will it be arranged with respect to various pdf tags?
Can someone point me to some good resource related to pdf for beginners, I am just trying to understand the format, however I would prefer to stay away from skewed and complicated documentation that dictates everything instead of systematical approach.