Since our candles are custom made, the sky is the limit! However, here are some tips on getting the best quality engraving you can: -choose a photo that is black and white. P.S. All the black/dark tones in the photos will be engraved. -picture format must be a jpg or png file between 2 & 5 mb. -the higher quality of your picture, the better. -submitted photos must be your own private property. We cannot reproduce any copyrighted or trademarked images or logos, unless the proper legal permission has been obtained from the owner.