The Hewlett-Packard Raster Transfer Language (HP RTL) is a subset of the
Printer Command Language
Printer Command Language, more commonly referred to as PCL, is a page description language (PDL) developed by Hewlett-Packard as a printer protocol and has become a ''de facto'' industry standard. Originally developed for early inkjet printer ...
(PCL) language. It is used to embed true raster images (bitmaps) into
plotter files. Modern plotters (like HP DesignJets) are raster devices, so they need a raster-based language. For backward compatibility they also support the
HP-GL/2 (formerly
HP-GL
HP-GL, short for Hewlett-Packard Graphics Language and often written as HPGL, is a printer control language created by Hewlett-Packard (HP). HP-GL was the primary printer control language used by HP plotters. It was introduced with the plotteHP ...
) vector language, so the HP RTL language is designed for mixing with the HP-GL/2 language.
Further reading
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External links
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{{Authority control
Raster Transfer Language
Page description languages