Where the international application contains drawings, the applicant must indicate, in the check list on the request form (Form PCT/RO/101), the number of the figure in the drawings which they suggest be published with the abstract.
The figure published with the abstract must be the one which best characterises the claimed invention and must be chosen from the drawings accompanying the international application. Generally, only one figure should be indicated. The abstract may exceptionally be illustrated by more than one figure where necessary information cannot be otherwise conveyed. A figure containing significant amounts of text should be avoided.
PCT AG I 5.163, 5.170 and 5.171