OBJ Export for Acrobat is a Wavefront OBJ file export plug-in for Acrobat®. This plug-in gives Acrobat the ability to export objects from 3D PDF file in Acrobat to 3D polygon mesh objects in a Wavefront OBJ file.
OBJ Export for Acrobat tessellates objects in a 3D PDF into a set of triangular meshes. These meshes are then exported to an OBJ file as mesh objects. The OBJ file can then be imported into a variety of CAD applications.
OBJ Export for Acrobat is very easy to use. Once installed, it automatically loads itself into Acrobat and adds a new menu called "OBJExport" to the Acrobat menu.

Export - Exports a Wavefront OBJ file
Help - Displays the OBJ Export for Acrobat help file
Register - Displays the OBJ Export for Acrobat product registration dialog box
About - Displays the OBJ Export for Acrobat about box
About - Displays the SKP Import for Acrobat About box
The OBJ File Format
The OBJ file format is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. The file format is open and has been adopted by other 3D graphics application vendors, making it a universally accepted geometry file format. The OBJ file format is a simple data format that represents 3D geometry alone - namely, the position of each vertex, the texture coordinate associated with a vertex, the normal at each vertex, and the faces that make each polygon.