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What is PS (Postscript ) file
Files with the.ps extension were created between 1982 and 1984 by Doug Brotz, Bill Paxton, John Warnock, Ed Taft, and Charles Geschke at Adobe Systems.
Publishers commonly use PS files to make images available in print and digital format.
It seems impossible to print text and images at the same time. We used to create PDF files for printing, but now we print to the PostScript format, which this book uses.
The PostScript language was invented so that applications could interact with printers. It allows applications to display text and images on a single page.
The Apple LaserWriter, released in March of 1985, marked the first laser printer equipped with the PostScript standard. PostScript is a standard for sending fonts and formatting information from computers to printers.
This program was initially conceptualized as a computer programming language by John Gaffney; the file format was later developed.
PostScript files are primarily created with applications like Adobe Acrobat or Quark Express.
Though newer file formats of similar and better functionalities have been made since the older and traditional postscript format. But the old postscript is still supported by the more recent technologies; that's why the hardware producer provides the device driver software structure.
Most PS files function more like a GPS—with the proper instructions, your printhead can scribble the right pixel of character at the right spot.