unfortunately more often than not panels are printed crooked- something about how the fabric rolls through- the process...very seldom will you find one that is actually straight- you can try to straighten it some- depending on how 'off' it is- you can tug on it holding diagonal corners (like top right, bottom left) stretching the bias, and pressing- sometimes that works, sometimes the best thing to do is either trim it square or frame it & square it- generally once you use it the wonkiness is not noticeable.