How do you save a puzzle after it’s done?

Slide wax paper or parchment paper under your puzzle. Leave about an inch of paper around the perimeter of the puzzle. Make sure the puzzle lays flat on the paper. Pour your glue right on top of the puzzle, then use a piece of cardboard or a business card to spread the glue around.

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How do you permanently keep a puzzle together?

Gluing Your Puzzle

Place the wax paper underneath the puzzle and use a rolling pin to ensure that the puzzle is as flat as possible. Pour the glue on top of the puzzle and then use a piece of cardboard or a business card to spread the glue evenly over the puzzle.