Opposition leader Mark McGowan has pledged to create jobs in Western Australia until he is blue - or is that red? - in the face.

Even his posters at polling booths on Saturday said WA jobs were his "#1 priority".

"Which is a great sentiment but you look at the small print. All the posters are printed in NSW," pointed out one sharp-eyed voter.

"Surely WA printers are capable of printing posters and would provide jobs in WA!"