The Ghent Output Suite (v3)

gwg.org

The Ghent Output Suite (v3)

Goal• Need for a easy to use, vendorindependent set of files (testpatches) to check PDF-workflowsand RIP’s


A historical overview• 2002-2004: Altona Test Suite(Technical page)− The other side of the coin…− Interpretation most of the times up tovendors to figure out the result• Beyond knowledge and capacity of most regularusers


The Ghent Output Suite (v3)• Patches - basics− One file per issue− Always visual comparison− Created with real live layout tools andPDF software− Important: PDF/X-compliancy• No shiny fancy tricks or new features• All regular PDF/X-3 and PDF/X-1a content(overprint, fonts, gradients, DeviceN)


The Ghent Output Suite (v3)• Patches - Interpretation− The “X” approachVisual comparison with referenceimage (rendered object)


Some real examples


Some real examples


Some real examples


Some real examples


Some real examples


Some real examples• And the moment you think, thiswill never happen to us…


To come (GOS v4)• Transparency Blend Space patches


To come (GOS v4)• Transparency Blend Space patches


To come (GOS v4)• Flattened Object Rendering precision


To come (GOS v4)• Patches for− 16 bits images− JPEG2000 compression− Optional Content (PDF layers)− Etc.


To come (GOS v4)• Reminder− These are only test patch proposals, nofinal decisions have been made yet


To come (GOS v4)• Stay informed− http://www.gwg.org/future_specifications.phtml


Thank youQuestions?

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