LITIO is a sheet metal program that calculates flat (unfolded) sheet development of ducts, rectangle to ound transitions, cylinders, cones, pipe intersections, connections, bifurcations, elbows, etc. For HVAC, hoppers, cyclones, dust extraction, ducts, conveying systems, silos, piping, etc. To draw your sheet metal developments directly in AutoCAD R2000 and later (no need of DXF convertions).

BOM4CAD 2004 - Automatic numbering
BOM4CAD 2004 is an AutoCAD 2004, 2005 and 2006 application for automatic numbering in the drawing with number annotations. It can create annotations build with leader entity and unique sequence number either in decimal, alpha or roman number style.

Easy CAD to Image Converter
Facilitate conversion from DWG, DXF, DWF to BMP, JPEG, GIF, TIFF, PNG, and TGA file types. Batch convert your DWG, DXF, DWF drawing files to image files of any size to answer your specific needs, such as for easy reading for people without AutoCAD.

LITIO - 3D Sheet metal unfolder
Sheet metal for AutoCAD. It calculates flat (unfolded) sheet development of ducts, rectangle to ound transitions, cylinders, cones, intersections, connections, bifurcations, elbows, etc. For HVAC, hoppers, cyclones, ducts, silos, piping, etc.

PDF to DXF Converter
It is a powerful windows program that will help you convert your PDF files to usable and editable DXF files quickly and easily, so you can recover the entities in PDF to corresponding DWG entities easily.

Easy CAD to SVG Converter
Convert DWG to SVG, DXF to SVG, DWF to SVG without the need for AutoCAD! You can specify output width and height, scale the line weight, choose model space, paper space, active layout, or all layouts. Easy CAD to SVG Converter is quality freeware.