Files must be on the CAD drawing from our studio. Drawn can be CF-2, Adobe Illustrator file or PDF, also open in Illustrator. In connection with cutting and creasing, 5 mm bleed / hold at the end of the printing. (So 5 mm outside the clean format.) By designing a box with window, always maintain 15 mm from the crease line (in PE cardboard 20 mm). This is due to the technical realization of the packaging. After the files digitally processed by us for further processing in the production, a PDF is sent to you for review. We can also provide upon request a printed proof. The proof will give a good impression of the final result. When you do provide a colour proof, it should be well within the ISO 12647-2 standard created. Colour proofs that do not conform to the ISO standard cannot serve as a colour model. Cardboard colour will affect the final result. Especially with transparent colours cardboard colour can ensure that the end result differs slightly from the colour test.