If your artwork files do not meet our specifications, PakFactory is not responsible for any printing errors that can arise as a result. Read our Artwork Preparation Guide on how to prepare your files for submission or Contact Us to have a packaging specialist help!   Cut Line (Black Lines): Indicates the cut at its final size. Important artwork and text should be placed at least 0.125 inches inside of the cut line.   Crease Line (Red Lines): Indicates where the product is to be folded.   Bleed Line (Green Lines): Indicates where the bleed line is located. Any artwork which goes to the cut line should be extended to the bleed line to get a seamless print.   Safety Margin(Dotted Green Lines): Indicates where artwork and text should safely be placed inside. As an industry standard, all artwork should at least be placed 0.125 inches away from the cut line unless your design is intentional.   Perforation (Dotted Black Lines): Perforation line refers to paper that is punched with very small holes to allow the paper to be torn and folded easily.