Printing with the Gimp

[kmaher]

Hey whats up,
ive been using the gimp for a few weeks to make stencils and its been great. one thing that i cant figure out though is how to make the picture bigger to fit on multiple pages. say i want a large print so i can fit it onto a large canvas, i dont know how to enlarge it so it does that. and theres no print preview which is irritating to.