1)   AutoCAD DWG to DXF 2005
AutoCAD DWG to DXF is a batch DWG DXF bi-directional converter that allows you to convert DWG to DXF, DXF to DWG without the need of AutoCAD. It is also an AutoCAD drawing file version converter.
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 2)   Autocad Converter 6.1
Autocad Converter is a batch DWG and DXF bi-directional converter that allows you to convert DWG to DXF, DXF to DWG without the need of AutoCAD. It is also an AutoCAD drawing file version converter.
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 3)   AutoCAD PDF Converter 4.0
AutoCAD PDF Converter is a batch converter that allows you to convert AutoCAD DWG to PDF, and DXF to PDF without the need of AutoCAD.
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