PCL To PDF Converter

Looking for a Unix command / tool that would convert PCL files into PDF files.

I've searched the forum and the web and can't find any.

Is it even possible?

Cheers.

How about:
LaserJet PCL printing, PCL to PDF, conversion and viewing software
"Now available for Windows, Unix, OpenVMS, Tandem, HP3000 and AS/400!" it says.