All printing materials should be provided as PDF files. Separate files for the middle, cover and finishing.
all fonts in the work should be nested/embedded in the file
when saving to PDF, all layers should be flattened
the net format (target size of the work) should be increased by the occurring bleeds
PDF files prepared for printing should be without the attached ICC profile
the colour space suitable for printing is CMYK + special colours Pantone ( if any )
do not use overprints in printing files for white objects
Colours for reprinting or printing resumptions may slightly differ from those of the original printing or done with a different technology. In order to minimize this difference, it is necessary to provide the previous print as a pattern.
Bleed in PDF file
All elements that reach the crop mark should be increased by bleeds. The size of the bleeds should be min. 3 mm
All important elements should be at least 5 mm from the crop mark.
All pictures and graphics in the files should be prepared with a minimum resolution of 200 dpi.
The minimum line thickness at 100% color coverage is 0.4 pts i.e. about 0.14 mm. The minimum thickness of grey lines is 0.7 pts i.e. about 0.25 mm.
Cover and veneer
the PDF file for the cover/ sticker printing should be prepared as a separate PDF file, independent from the middle file
minimum size of the printed spine (i.e. logos and texts) is 6 mm
The elements on the book spine should be at least 1.5 mm from the edge of the spine.
Finishing ( Hot stamping, UV varnish, embossing )
The file to be finished must be made on the same layout as the file on which the finishing is to be applied.
The mask for UV varnish should be prepared in a separate PDF file as 100% black
The mask for hot stamping (foil stamping) should be prepared in a separate PDF file as 100% black.
Elements embossed with foil must not be smaller than 0.5 mm and must be located at a distance of less than 0.2 mm from each other.
The embossing mask should be prepared in a separate PDF file as 100% black.
Embossed elements must not be smaller than 0.5 mm and must be located at a distance of less than 0.2 mm from each other.