About security margins to print
Dear Indesign users,
I'm designing a magazine with Indesign. When I went to a printing with my exported PDF, they said me that they had to put some white margins to prevent the cutting could eat some content of my design. They said me that I should let a security margin of at least 3mm apart from the original measure A4.
But I'm not sure how to apply this margin. I have to include in the design measure and assume that some millimeters of content will be lost? Or i haven't to consider this margins when I design the magazine content in the A4 original measure (210x297)?
Examples:


Besides this doubt, anyone can explain me how to set up the margins for a print of a magazine? Are correct the margins in the pictures? I have to do another set up margins for de double page sheet?
Best regards;
Roger

