GSM or gm², stands for 'grams per square metre' and refers to the weight of the substrate. The gramage of a substrate is the weight of a one square metre (100cm x 100cm) sheet. This applies to paper, card, and some other flat materials, like cloth and vinyl.  Higher gramage does not always mean a thicker substrate, but a more dense one.  Remember too, the heaviest papers may not necessarily be the highest quality, so we recommend getting yourself a sample pack before you make any big decisions. It’s free!



Bleed is the 'edge' of a piece of artwork that goes beyond the trim edges of the printed piece. It's important that backgrounds or images that touch the edge of the printed piece 'bleed' outside of the trim line to make sure that when it's trimmed after print there is no risk of a white 'edge' appearing on the finished piece. We advise a minimum of 1.5mm bleed on all artwork.



All files should be created and supplied in CMYK (the correct colour system for digital and traditional litho printing), and not in RGB colours (used in light emitting devices such a computer and TV screens). Files supplied in RGB will automatically be converted to CMYK and there may be a noticeable colour shift in the process. CMYK stands for Cyan, Magenta, Yellow and Black - the inks our Indigo digital presses mix together to make colours on your printed job. RGB stands for Red, Green and Blue - the colours a computer screen mixes together to make colours on your screen.