There are 7 Pablo kiosks at this airport (Roissy Charles de Gaulle, 95700 Roissy-en-France) that will allow you to scan your tax free form / barcode.
Terminal 1, arrival, floor 5, near Monop', Marks & Spencer and Global Cash.
Terminal 2B, departure
Take the escalator behind Carl's JR  | Follow the "Tax Refund" signs  |
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Terminal 2E, Gate 4, departure :
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Terminal 2F :
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Terminal 3, international customs zone
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Terminal 2A, Gate 5 : closed for renovation
Terminal 2C, Gate 12 : closed for renovation
Terminal 2D, Gate 6 : out of order !