answer:Yes. It’s been years, but in a past job I had to write into PDFs programmatically. At it’s core, a PDF is a page description typed out in plain text. To give you an idea of the mechanics, here are the methods available in PHP: PHP PDF Functions UPDATE: I see you specified “navigate” and the PHP functions above are for creating PDFs. I know it’s possible, I do not know offhand how to do it.