PostScript
PostScript is a page description language and programming language used primarily for describing the appearance of text, graphics, and images in electronic documents. It is a stack-based, Turing-complete language that enables precise control over printing and display output, widely adopted in the desktop publishing and printing industries. Developed by Adobe in the 1980s, it serves as the foundation for PDF (Portable Document Format) and is commonly used in printers, typesetters, and graphic design software.
Developers should learn PostScript when working with printing systems, document generation, or graphics programming, as it provides low-level control over page layout and rendering. It is essential for creating high-quality printed materials, such as brochures, books, and technical manuals, and for understanding the internals of PDF files. Use cases include driver development for printers, custom document processing tools, and legacy system maintenance in publishing workflows.