The file(s) you send to us for proofing should be exactly the same file(s) that you intend to send to your printer, for final production. Before sending file(s) for proofing, you should check with your printer what profile they use.
PDF files, correctly set up to your printer’s requirements are best. All objects must be defined in CMYK or spot colours. Elements in RGB or Lab colour will be rejected, and objects tagged with ICC profiles different to the output intent will generally be prohibited. All fonts must be embedded or outlined.
We strongly recommend that you supply your file(s) in PDF/X format. The latest variant (PDF/X-6) relates to PDF 2.0 standards that are still very new (March 2022). If you are unsure how to set up your file, please call to discuss your needs.