Preflight Checks


Preflight Checks

All adverting files (PDFs) must be supplied via an approved preflight ad delivery vendor, please see here for delivery methods.

These systems will preflight your advertising file before delivery into us, this is to ensure they are to our strict specifications.

Below is a summary of the checks that will be performed on your advert, and if not meeting these requirements will result in a warning or an error.
You can acknowledge a warning and still send the file onto us at your own risk, but you must fix all errors before you will be allowed to deliver your file.


Newsprint Files

File type: PDF
PDF standard: PDF/X-1a:2001
PDF specification: GWG - NewspaperAds_1v4
Colour space: CMYK
Colour Profile: To the current ICC colour profile determined by News UK

Job ticket & Embedded information:File Name, Publication, Insertion Date, Ad Size / Dimensions, Sender Name / Email, Advertiser, Brand / Headline, A Validated URN (‘validated’ means checked against our booking data to ensure the creative uploaded matches the Publication, Insertion Date & Size of the booking that URN corresponds to).

Custom Newsprint Preflight checks:

  • Effective text x-height is below 8pt = Warning

  • Text is smaller than 8 pt = Warning

  • Text smaller than 10 pt uses more than 1 colorant = Info

  • Font not embedded = Error

  • Uses Multiple Master font = Error

  • Resolution of bitmap images is less than 300 ppi = Error

  • Resolution of halftone images is less than 150 ppi when image size is greater than 5x5 pixels = Error

  • Object uses RGB Colour could make ink coverage above specified limit = Error

  • Registration color inside TrimBox = Error

  • Uses device independent colour that could make ink coverage above specified limit = Error

  • White CMYK object is set to overprint and OPM is 1 = Error

  • White CMYK object is set to overprint and OPM is 1 (stroked) = Error

  • White object not set to knock out = Error

  • White text is not set to knock out = Error

  • White text is not set to knock out (stroked) = Error

  • White vector object is not set to knock out (stroked) = Error

  • White Transparency found in file = Error

  • Annotation of this type not allowed (GWG) v4.3: Movie, Sound, TrapNet, PrinterMark, PolyLine, Caret, Screen, Watermark, Redaction and Polygon = Error

  • CropBox not equal MediaBox = Error

  • Effective ink coverage is above 240% = Error

  • PDF contains spot colours = Error

  • PDF/X Output Intent not CMYK = Error

  • Vector-Checks not exceeding Vector Limit = 25000 = Error


Magazine Files

File type: PDF
PDF standard: PDF/X-1a:2001
PDF specification: GWG - MagazineAds_1v4
Colour space: CMYK
Colour Profile: To the current ICC colour profile determined by News UK

Job ticket & Embedded information:File Name, Publication, Insertion Date, Ad Size / Dimensions, Sender Name / Email, Advertiser, Brand / Headline, A Validated URN (‘validated’ means checked against our booking data to ensure the creative uploaded matches the Publication, Insertion Date & Size of the booking that URN corresponds to).

Custom Magazine Preflight checks:

  • Effective text x-height is below 8pt = Warning

  • Text is smaller than 8 pt = Warning

  • Text smaller than 10 pt uses more than 1 colorant = Info

  • Font not embedded = Error

  • Uses Multiple Master font = Error

  • Resolution of bitmap images is less than 300 ppi = Error

  • Resolution of halftone images is less than 300 ppi = Error

  • Object uses RGB Colour could make ink coverage above specified limit = Error

  • Registration color inside TrimBox = Error

  • Uses device independent colour that could make ink coverage above specified limit = Error

  • White CMYK object is set to overprint and OPM is 1 = Error

  • White CMYK object is set to overprint and OPM is 1 (stroked) = Error

  • White object not set to knock out = Error

  • White text is not set to knock out = Error

  • White text is not set to knock out (stroked) = Error

  • White vector object is not set to knock out (stroked) = Error

  • White Transparency found in file = Error

  • Annotation of this type not allowed (GWG) v4.3: Movie, Sound, TrapNet, PrinterMark, PolyLine, Caret, Screen, Watermark, Redaction and Polygon = Error

  • CropBox not equal MediaBox = Error

  • Effective ink coverage is above 300%* = Error (*This is the value for cover sections in News UK, 360% is the value for text sections)

  • PDF contains spot colours = Error

  • PDF/X Output Intent not CMYK = Error

  • Vector-Checks not exceeding Vector Limit = 25000 = Error