An arrangement for handling charge card purchases has a digital pen (1; 1') which is arranged to record the signature of a charge card purchaser in digital form when the purchaser writes the signature on a physical charge card receipt (2; 40) using a pen point (17) arranged on the digital pen. The arrangement also has a signal processing means (16; 33) which is arranged to produce a digital charge card receipt, which corresponds to the physical charge card receipt, by storing the digital signature together with digital purchase information relating to the charge card purchase to which said physical charge card receipt relates. A charge card receipt and a method of handling charge card purchases are also disclosed.
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