IrfanView IrfanView is a fast image viewer/converter for Win9x/NT and Windows 2000.
DWF = DWG Converter DWF to DWG converter imports DWF files into AutoCAD R14, 2000(i) and 2002 drawing.
Free DWG Viewer Free DWG Viewer will open and view AutoCAD DWG, DXF, DWF and secure CSF formats. Drawing files can be viewed easily with full zoom / pan / eyeglass / layering controls. The viewer can save views to JPEG, and it supports accurate snap to point