Abstract: An automatic packaging machine for enclosing packages in a pliable film includes a conveyor for moving a package through the packaging machine, an end seal bar configured to cut and/or seal a pliable film transversely to a longitudinal axis of the pliable film, and first and second side sealers disposed on opposite sides of the conveyor and configured to cut the pliable film along the longitudinal axis of the pliable film. The side sealers are automatically moved in a vertical direction to align the side sealers with a centerline of the package. The side sealers are also automatically moved in a horizontal direction to approximate a known width of the package.