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GWG launches PDF Output Suite 5.0 certification worldwide

Print Solutions



The Ghent Workgroup (GWG) is offering a new service called Ghent PDF Output Suite 5.0 Conformance Certification. With this certificate print companies can prove that their PDF output workflow is compliant with the PDF/X-4 standard (ISO 15930-7:2010). The certification is based on the globally recognised Ghent PDF Output Suite which was developed to help testing PDF/X-4 compliancy of PDF output workflows. The Ghent PDF Output Suite 5.0 consists of several dozen patches each testing a specific aspect of the PDF/X-4 standard. The GWG has put together a great number of these patches into six merged test pages.



This test file is fully PDF/X-4 compliant and contains only valid PDF/X-4 features which represents what could be part of every regular PDF/X-4 print production file.

The pages of the Ghent PDF Output Suite 5.0 are grouped into two conformance levels:

Conformance Level 1: pages 1 to 4 which includes CMYK and spot colour tests.

Conformance Level 1+2: pages 1 to 4 and pages 5 to6 which includes ICC based colour tests.

Conformance Level 2 involves colour management and is therefore more demanding. The GWG is offering two separate Conformance Certificates Levels:

Ghent PDF Output Suite 5.0 Conformance Certification – Level 1.

Ghent PDF Output Suite 5.0 Conformance Certification – Level 1+2.


GWG created the Ghent PDF Output Suite 5.0 Conformance Certification programme in 2021. Participating GWG members can offer this programme to their members. The certification programme is for companies not individuals and targeted to end users (eg, print and packaging companies). Solution vendors, developers or system integrators who wish to participate in the Ghent PDF Output Suite 5.0 Compliancy programme for their products should contact the GWG. The certification is not directly offered by the Ghent Workgroup but by participating members (associations, vendors, industry members, educational members). The GWG member manages the certification process. They also determine the cost of the certification for their candidates.

The following members already expressed interest to offer this conformance certification:

ArtOption (Germany)

CAPT (China)

CEC LATAM (Latin America)

EFI (International)

Four Pees (International)

Future Schoolz (India)

Government Institute of Printing Technology Mumbai (India)

UiTM (Malaysia)

University of Ljubljana (Slovenia)

VIGC (Belgium)

‘The Ghent PDF Output Suite 5.0 was created to check if the settings of a PDF output workflow are conform to the PDF/X-4 standard. The new Conformance Certification allows a print provider to proof that this output workflow is able to process PDF/X-4 print files without any problems. This will help increase the reliability of PDF/X-4 workflows worldwide,’ stated Stephan Jaeggi, CEO of PrePress-Consulting in Switzerland and co-chair of the GWG Process Control Subcommittee.


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