How can I have my print product printed on both sides?
The numerical colouring information of a product explains whether the pages are printed in one colour (1), four colours (4) or unprinted (0). The digit before the slash indicates the front and/or title page. The digit behind the slash stands for the reverse side and/or inside page.
Examples:
4/0 colour: The print product’s front page is printed in four colours (multi-coloured). The reverse side is unprinted.
1/1 colour: Both the print product’s front and reverse sides are printed in one colour.