PostScript is indeed a Turing-complete language. It's a common misconception that PDF is an extension of PostScript. PDF is only loosely based on PostScript. I

PostScript is indeed a Turing-complete language. It's a common misconception that PDF is an extension of PostScript. PDF is only loosely based on PostScript. In particular, it doesn't support any control flow, like conditions or loops. It is not a programming language, unless you count embedded JavaScript.