Clear Channel Megaposter
Sonday 5 September 2010
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Prepress instructions
Based on our wide-ranging experience with the lay-out and the installation of mega-posters, we have the following recommendations: PDF Version
  • Use contrasting subjects (particularly effective when there is a large distance between the observer and the hoarding)
  • Pastel shades are only suitable when combined with bold colours (particularly effective when there is a large distance between the observer and the hoarding)
  • Keep text to a minimum, and use a font which is one-and-a-half times or even twice as large as for print media (even for logos!)
  • Bear in mind that in certain cities (such as Zurich), the number of words allowed on an advertisement is limited to 5–10 words for road safety reasons
  • Text should be set around 15 cm (six inches) in from the edge of the poster (this is a requirement for installation due to the eyelets)
  • If mega-posters are to be installed on scaffolding, dust will form on the netting which, along with everyday air pollution will cause a white background to look greyish after a period of 2–3 months


Useful data:
   For short distances between the observer
and the advertising (10m):		 Layout scale 1:10 450 dpi
   For posters 100m2 and above: Layout scale 1:10 350 - 400 dpi
   For posters 200m2 and above: Layout scale 1:10 300 - 350 dpi
   For posters 400m2 and above: Layout scale 1:10 250 - 300 dpi


Data formats:
  • Lay-out format: 1:10, 1:20, 1:30, 1:40 etc. are all possible
  • Programmes accepted: QuarkXpress, Illustrator, Photoshop, Indesign
  • Always provide all integrated images
  • Provide all fonts, which should be converted into mapping
  • Do not save QuarkXpress as EPS files
  • Provide Photoshop images in TIFF, PSD or EPS format and also provide the layers (no bitmap data)
  • Please attach documents without overprint, bleed or trapping
  • Please do not provide fonts and logos in Photoshop
  • If data is delivered in PDF format, EVERYTHING must then be camera-ready; convert fonts into mapping BEFORE creating the PDF, black font must be produced by C60%, M60%, Y50%, K100%


Colours:
  • Files must be colour-composite (CMYK)
  • All black fonts and surfaces should be produced as four-coloured: C 60%, M 60%, Y 50%, K 100%
  • Logos Files must be colour-composite (CMYK) (you can also provide the Pantone colour references as additional information)


Delivering the data:
FTP access: ftp://ftp01.plakat.ch
You will receive the login data from your advisor.

CD-ROMs should be sent to us four weeks (two weeks absolute minimum) before the advertisement is due to be posted. You are also required to send two colour print-outs of each advertisement (A4 format) with the CD-ROM, so that we have the necessary draft for the printing authorisation.

Delivery address is as follows:
Clear Channel Plakanda GmbH
Steinengraben 14
CH-4003 Basel