Advice for sending graphic files for large format printing.

The specifications for creating graphic files are rather elastic: the files can be provided as open documents complete with fonts and images of applications such as Adobe InDesign, Illustrator and Photoshop or as PDF documents.
For optimal colour portability it is always preferable to include the corresponding ICC profiles in the supplied files – be they images or layouts.
Special colours such as Pantone Coated can also be specified.
Page layouts can be provided in 1:1 or full scale (50%, 25% 10%).
For any information of a technical nature and for colour management or simply to ask questions about the digital technologies used by Colorzenith, our graphic managers are there to give you the best advice.
Contact our staff fabio@colorzenith.it
For further details:
http://msdn2.microsoft.com/it-it/library/ms141015.aspx

Here are some technical specifications:
Inkjet Printing (small and large formats)
The resolution of the images generally varies from 300 DPI for the smaller formats (e.g. 100 × 150 cm.) to 30/40 DPI for larger sizes.
Photographic printing on Lambda (from 50 x 70 cm)
The resolution varies from a minimum of 150 DPI to a maximum of 200 DPI for formats from 50 × 70 cm. upward.
Photographic printing on Theta (from 13 x 18 cm)
The resolution must be between a minimum of 300 and a maximum of 400 DPI for formats starting from 13 x 18 cm. up to 50 × 100 cm.
Photographic printing on Lightjet (from 50 x 70 cm)
The resolution varies from a minimum of 200 DPI to a maximum of 300 DPI for formats from 50 × 70 cm. upward.