Gather your supplies and remove the plastic from the canvas.

Cut your poster to size. I cut mine within the canvas size so there would be a border.

Spread a medium layer of Mod Podge on the canvas with the foam brush. You'll want to work quickly for the next step so the Mod Podge doesn't dry.

Wet the poster in your sink or bathtub in order to make it easier to work with. Soak the poster for about 10 seconds.

Place the wet poster on top of the glued canvas. Adjust quickly and start smoothing out the air bubbles. Wet fingers to keep from tearing the poster.

Gently roll the brayer on top of the poster, being careful not to tear it. As the poster dries the air bubbles will go away, but you want to get rid of them as much as possible. Let dry.

After it dries for a few hours, add a few coats of Mod Podge on top, letting dry before coats.

Let dry for 24 hours before hanging.