gmeometric – Change page size wherever it's safe

Chang­ing the size of the type­set area is well-known to be a dan­ger­ous op­er­a­tion in TeX doc­u­ments. This pack­age iden­ti­fies the cir­cum­stances where the \ge­om­e­try com­mand of the ge­om­e­try pack­age may safely be used, (other, of course, than in the pream­ble of a doc­u­ment) and pro­vides a mech­a­nism for us­ing it.
The pack­age makes use of the au­thor’s gmu­tils pack­age.