GWG Releases First Universal “Proof of Preflight” Specification

GHENT, Belgium—The Ghent Workgroup (GWG) has released the first free “Proof of Preflight” specification, designed to allow users to easily verify PDF file integrity. When implemented in a software solution, this best practice specification offers users the ability to review a PDF file’s preflight audit trail, including a digital signature, at any time during the design-to-print workflow.