To estimate spine thickness
for uncoated paper 80 g/m2 - page count should be multiplied by 0,05mm (round up to 1mm) + 4mm;
for uncoated paper 90 g/m2 - page count should be multiplied by 0,055mm (round up to 1mm) + 4mm;
for volume paper Eccobook vol 2.0 70 g/m2 - page count should be multiplied by 0,133mm (round up to 1mm) +4mm.Example: Our Book has 250 pages printed on uncoated paper 80 g/m2, spine thickness = 250 x 0,05mm + 4mm = 16,5mm ~ 17mm
Preparing cover for
A4 size (210mm x 297mm)
horizontal length: 210mm x 2 + spine + 30mm bleed = 450mm + spine;
vertical length: 297mm + 30mm bleed = 327mm
A5 size (148mm x 210mm)
horizontal length: 148mm x 2 + spine + 30mm bleed = 326mm + spine;
vertical length: 210mm + 30mm bleed = 240mm
B5 size (170mm x 240mm)
horizontal length: 170mm x 2 + spine + 30mm bleed = 370mm + spine;
vertical length: 240mm + 30mm bleed = 270mm
Text pages should be 5 mm smaller in size then a cover.
A4 (210x297) - 205mmx292mm
A5 (148x210) - 143mmx205mm
B5 (170x240) - 165mmx235mm
There is no bleed required for black&white pages
7 mm margins is required.
Note: Do not put any text on books spine thinner then 6mm
Minimal line thickness is 0,25p (0,088mm)
Minimal font size is 4p
All fonts in text should be converted to curves or embedded with the pdf file.
BackgroundAccepted file formats:
Minimum colour use is 5% of any component (i.e.: C-0 M-0 Y-0 K-5)
Full blackness is achieved by using only black component (C-0 M-0 Y-0 K-100), no need to use other components
Colour - only CMYK scale in every graphic project. If you want to use spot colours (Pantone, HKS, etc.) you should look for adequate CMYK representation.
Gradients shouldn't be less then 5% of tonal transition.
Pictures and graphics should have 300DPI resolution and CMYK colour space (SWOP Coated CMYK)
Prefered file format is PDF. Other file formats are accpeted but we will charge additional fee for converting.
CDR CorelDraw ver. 11, fonts converted to curves, CMYK
JPG resolution 300 DPI, maximum quality, CMYK