Note: Source code files accompanying article are located on MacTech CD-ROM or source code disks. This article is a tutorial introduction to PostScript programming in the Macintosh environment. We ...

While PostScript is a language for controlling a printer, PDF is set up as a page description language. It focuses on what the page looks like and not how to create the page.

So, all you have to do to protect your own PostScript files from being converted into PDFs is to insert this code into the PostScript after the %BeginSetup or the %EndProlog lines of the PostScript.

Learn when and how to use a postscript (P.S.) in a business letter closing, and what to avoid. A postscript can emphasize, add, suggest, or apologize.

As of the new macOS Ventura, Apple's Preview app will no longer support PostScript or Encapsulated PostScript documents.