CADsketch allows you to quickly and easily create hand-drawn effects from AutoCAD DWG/DXF and HPGL PLT files. CADsketch is the answer to complaints about the dull nature of computer-generated line drawings.
HPGL Import for AutoCAD is a plug-in for AutoCAD 2000, 2000i, 2002 and 2004. This plug-in gives AutoCAD the ability to import geometric data from HPGL Plot (PLT) files.
HPGL Export for Rhino is a HPGL plot file export plug-in for Rhino. This plug-in gives Rhino the ability to export geometric data from Rhino to HPGL Plot (PLT) files.
HPGL Import for SolidWorks is an add-in for SolidWorks. This add-in gives SolidWorks the ability to import graphical data from Hewlett Packard Graphic Language Plot files.
VeryDOC PDF to Flash Converter (PDF2Flash) can be used to batch convert from Acrobat PDF files to other scalable Flash graphics formats, as well as EMF, WMF, Metafile, Flash, Postscript (PS), EPS, SWF (Flash files), HPGL, Flash etc.