PDO file contains data of 3D paper craft model (origami) and its corresponding 2D paper cutout, which stores the paper model's folding lines, cuts and patterns. This file format is native to Pepakura Designer software created in Japan and available in English language. This software allows users to print the design on paper and recreate the 3D model either by folding and/or gluing.

Pepakura Designer software allows users to create paper craft models from digital 3D blueprints. It support various formats such as 3DS, DXF, KML, KMZ, LWO, OBJ and STL. PDO project files can be exported as a bitmap file format, printed, and viewed using dedicated software – Pepakura Viewer. Users can download projects from web repositories.