Many people in the vast conduits of the interwebs talk about creating cross-platform frameworks. What happened to paper? Is it not a valid ``device'' anymore?


\begin{quotation}
THE POSTSCRIPT LANGUAGE is a simple interpretive programming language with powerful graphics capabilities. Its primary application is to describe the appearance of text, graphical shapes, and sampled images on printed or displayed pages \cite[8]{postscript}
\end{quotation}
In other words, {\it PostScript} is the language that your printer speaks (although your display can, too). PostScript is responsible for revolutionizing digital publishing, mostly because it provided an integrous communication channel between a computer and a printer. Therefore, since its introduction in 1985, it has become the industry page description language standard \cite[8]{postscript}.


Note that {\it Portable Document Format} (PDF) and PostScript can be converted to one another interchangeably, except that a PDF is a static document, whereas PostScript has an underlying general purpose programming environment \cite[9]{postscript}.


PostScript is a very, very low-level language that you would never want to write yourself, luckily we have things like \TeX\ out there to help us! Embracing \TeX\ is so important for the digital world because it allows us to conform to the standard for page description language---to be truly cross-platform, a system should work with every device, including paper!


From Digital to Paper