CAD

Envisioneer Express can also be used to display and review professional designs created with many popular design programs on the market including:

Cadsoft Envisioneer
3D Home Architect Series (versions 5-8)
The Carey Bros 3D Deck and Landscape
IMAGINiT Builder 3D
The Home Depot 3D Home Designer
The Home Depot 3D Landscape Designer
CFM 3D Comfort Zone  

Amethyst PLT-2-DWG is a powerful Windows program that enables you to quickly and easily batch convert PLT (HPGL/2) files to AutoCAD DWG and DXF. Support for all versions of AutoCAD from 9 to 2007. Stand-alone utility - AutoCAD is NOT required.  

DWG to JPG Converter Pro is a batch converter that allows you to convert DWG and DXF files to JPG (JPEG), TIF (TIFF), BMP, GIF, PNG, TGA, PCX, WMF and EMF without the need of AutoCAD.
Key Features:
1. AutoCAD NOT required.
2. Convert DWG and DXF to Image in batches.
3. Supports R2.5 to R2004/2005 formats.
4. Command line support.  

LiteCAD program lets even the most novice computer user design like a pro. Use the interactive tutorials and start creating. Create impressive 2D sketches and precision technical drawings in a flash--and have fun. Whether you re a beginner, casual designer, or a design enthusiast, this program let's you design like a pro.  

VizUp Reducer is designed specially for game developers, architects, and 3D designers. With this software in place, they get a pain-free way to reduce polygons and optimize 3D models, and presentations before publishing them on Web. Supports Wavefront .OBJ, VRML 2.0/97 and StereoLitho (.STL) file formats.  

Defocus Dei adds realistic depth of field effect on any images computed with 3DS Max, Lightwave, Maya, Cinema 4D or any software which exports RLA/RPF files or its Z-Buffer as an image file. You simply define the depth of field interval, the blur amount before and after the focus point and the trick is done! You see immediately the results. Defocus Dei can also import an animation sequence and is able to animate the depth of field settings.  

AutoCAD to PDF is a batch converter that allows you to convert DWG to PDF, DXF to PDF without the need of AutoCAD.
Key Features:
1. Stand-alone utility - AutoCAD NOT required.
2. Convert DWG and DXF to vector PDF in batches.
3. Supports every version of DWG/DXF files (Supports R2.5/2.6, R9, R10, R12, R13, R14, R2000/2002, R2004/2005/2006, 2007 formats)
4. Very easy to use.  

DWG to JPG is a batch converter that allows you to convert DWG and DXF files to TIF (TIFF), JPG (JPEG), BMP, GIF, PNG, TGA, PCX, WMF and EMF without the need of AutoCAD.
Key Features:
1. AutoCAD NOT required.
2. Convert DWG and DXF to Image in batches.
3. Supports R2.5 to R2004/2005/2006/2007 formats.
4. Very easy to use.  

The Screen Protractor allows you to easily and quickly measure any angle on the screen to the nearest Degree or Radian. Work with any application to overlay maps, photos, designs or plans to measure angles with ease and with perfect accuracy. The Screen Protractor floats above any other application so you can measure anything on your screen.  

Amethyst DWG-2-PDF is a powerful Windows program that enables you to quickly and easily batch convert drawings to the Adobe Portable Document Format (PDF). Support for all versions of AutoCAD from 2.5 to 2007. Stand-alone utility - AutoCAD is NOT required. Stand-alone utility - Adobe Acrobat is NOT required. Includes a CAD viewer that allows you to view drawings and convert the currently displayed image.