GPL Ghostscript (64-bit version)
GPL Ghostscript isn't a program to use on its own. Rather, it's a helper that interprets PostScript and .pdf documents. For instance, some Adobe Reader alternatives require Ghostscript to work. Often these files, such as CutePDF Writer, allow you to install Ghostscript as part of their own installation process. However, if you find yourself needing Ghostscript for another program, such as Scribus, you can download this one and install it with the instructions at Ghostscript.com.
Note: The vendor does not offer technical support on the free version of this software, which comes in 32-bit and 64-bit versions. This is the 64-bit version, which is for 64-bit PCs running a 64-bit OS. If your PC is running a different supported OS, please download the 32-bit version instead.