Advice

Posters

• True 600 dpi inkjet HP Designjet 3500.
• Paper size is 1372mm x any length with image area of 1350mm.
• Images should be CMYK.
• Resolution lower than 100 ppi will pixelate and look blocky. It is recommended that the resolution be between 100 and 150 ppi at the final output size. So a 300 ppi image will become 150 ppi if in a document that is blown up by 200%.
• Preferably set up documents to quarter or half size or in pro to the final size.
• Media choices are 170gsm gloss, semi-gloss/satin or matt paper. Semi-gloss is the most often used as it does not buckle.
• Scaling A4 to A3 is 141%; to A2 is 200%; to A1 is 283%; to A0 is 400%.
• When saving Photoshop EPS’s don’t include screening, or use JPEG encoding.
• Pantone colours are four-colour process simulations using manually configured LAB lookup tables.
• JPEG images may 'posterise' especially in highlight areas. Only TIFFS and Photoshop EPS files should be used for poster work if possible.

Please also look at our prices section.