The GWG 1v4 specifications describe the data that PDF files should contain to ensure they can be reliably exchanged and processed by graphic arts companies and workflows.

Apogee Preflight v7.1 will ship with the 13 profiles of the GWG 1v4 standard, enabling users to check whether incoming files were made according to the GWG specifications.

GWG 1v4 compliant files are based on the PDF/X-1a standard. The GWG is an independent international organisation made up of graphic arts users, associations and developers that builds best practices for publishing workflows.