To Export a Model to 3D PDF
1. In a model, click > 
Save As > Save a Copy. The Save a Copy dialog box opens.
Save As > Save a Copy. The Save a Copy dialog box opens.2. Select 3D PDF (*.pdf) in the Type box. The model name without the extension appears in the New file name box.
3. Accept the default name or type a different one.
4. Click OK to export the model using the default export profile options or click Options to customize the export settings in the 3D PDF Export Profile Settings profile editor.
5. When you select Options, customize the export settings in the 3D PDF Export Profile Settings profile editor or click Load Profile to load and use an existing export profile with options specific to the 3D PDF format.
6. Click OK in the 3D PDF Export Profile Settings profile editor.