If you are supplying a barcode, please ensure the barcode is generated following the guidelines published by GS1uk (www.gs1uk.org). These guidelines will provide you with information regarding the suitability of barcode colours and background colour combinations.
On all barcodes a bar width reduction of 25 microns is required to compensate for pressure addition to the bars in the litho printing process. Please ensure that the correct print free area is incorporated around the barcode.
If there is insufficient space for a full height barcode, the bars can be truncated (i.e. cut off from the top) by up to 10mm or 37.5%.
The barcode should be generated at the required final size. Barcodes should never be reduced or enlarged after generation and should never be scanned from another source.
If you do not have the facility to produce your own barcodes, our Prepress Studio can generate most types of code in-house and insert them in the final design for you. If you require this service, please supply the following information with your artwork:
Artwork must be supplied in PDF format. Files supplied must comply with the ISO PDF/X-1a:2001 standard as defined by ISO 15930-1 with the exceptions listed below:
To minimize file size, the data (streams) in a PDF file should be compressed where possible.
We advise you to use direct PDF export from within the native application. If direct export is not an option within your workflow, we can provide a Distiller JobOptions file on request. The PDF must not be created with the Adobe PDFWriter product. The PDF file should not contain more than one page.
All artwork files may be compressed using WinZip prior to submission in order to further reduce their size.
Files up to 50MB in size can be emailed to firstname.lastname@example.org. Alternatively, or for larger files, please use one of the many free web based utilities such as:
and send us the link so that we can download the file. Please ensure that you maintain a copy for your own records.