HPLG file is a printer instruction file based on the plotter language developed by Hewlett-Packard. This type of files (*.phgl file extension) contains and are used to send information to plotter printers, which draw images using lines instead dots that are used on laser or inkjet printers. HP Graphics Language is formed from a series of two letter codes followed by arguments, normally separated by commas, and ending in the separator character which by default is semicolon. This file format was not intended as an interchange format, but is used as such from some software suppliers.
HPGL/2 is the successor of the old HPGL format. HPGL/2 processes expanded vector and raster information using very little memory space. According to the distribution any CAD system supports HP plotter drivers.
HPGL viewer is free, small and compact viewer supported by all versions of Windows OS. This viewer allows you to open and view the *.hplg files before you print them. Except viewing HPGL files, this viewer supports resizing, rotating and converting this file types in other user friendly file formats such as JPEG, Bitmap, GIF, PNG and other extensions without losing any quality.
This viewer have a very used-friendly interface that makes it suitable for use for any type of user, beginner or advance.