# Ghostscript [Ghostscript](https://ghostscript.com) is a program used to convert, compress and render different formats like PDF, PostScript and more. ## Setup The Ghostscript program can be installed on most [Linux](/wiki/linux.md) distributions and [package managers](/wiki/linux/package_manager.md) via a package called `ghostscript`. ## Usage This section addresses the usage of Ghostscript. ### Compressing a PDF File A PDF file can be compressed using Ghostscript by running the following command. `` and `` are the paths to the input and output PDF files. ```sh gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile= ```