He most recently played competitively in Slovakia, but because injury ruled him out for the last year he will join the Gills on a month-to-month basis.
Gillingham are waiting for international clearance for the deal.
Aborah first appeared for the Dutch club as a 17-year-old in a Champions League game against Maccabi Tel-Aviv.
He is expected to be in the squad for Gillingham's season opener against Cheltenham.
Source: BBC Sport
