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3D PDF

3D PDF is a PDF file with 3D geometry inside. Using any 3D PDF enabled viewer, rotation, zoom and part selection is available within the 3D view.

3D PDF is just like a normal PDF (Portable Document Format) file, which contains a 3D view somewhere on some page. Just like a PDF containing an embedded image, except when you put the mouse over it, you can rotate, zoom, pan and explore the scene in 3D (three dimensions). The file actually contains a 3D geometric representation of the scene, not just images from different viewpoints.

DGN

A DGN file is a 2D/3D drawing created by MicroStation or Intergraph Interactive Graphics Design System. Such files are typically used to save designs for construction projects for highways, bridges, and buildings.

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