Please supply your perfect bound booklet as 2 PDFs. We require a two page PDF with the outer cover and inside cover set as spreads with the spine included, and a separate PDF with the inner pages running in order from start to finish. For example, an 80 page booklet will have a two page PDF containing pages 80, 1 and 2, 79 set as spreads and a multi-page PDF running in page order from page 3 to 78. The total number of pages must be divisible by 4. We recommend you avoid content which crosses two adjoining pages.
The closer to the centre pages of a booklet, the more has to be trimmed off the page edges. While our imposition software makes allowances for this, it is not recommended to have text or images too close to the edges of your booklet pages. We recommend a gap of at least 5mm on all edges and that you move all important content in from the binding edge by 10mm.
Calculate the spine width by using the spine width calculator on the Perfect Bound product page.
Ink Coverage on Cover
We recommend adding lamination to the cover pages for protection. During production, the spine is glued to the inner pages using a clamp which may cause scuffing or printer marks around the spine area and any other heavy ink coverage area on the cover.
If lamination is not desired, we advise reducing any graphics or background colours crossing into the outer and inner spine area.