Consistent processing of transparency with PDF 2.0

During processing (rendering) of transparencies one can get different results from different systems in certain (in daily production very rare) situations today. The reason are unclear definitions in current PDF specifications (PDF 1.4 – 1.7 and ISO 32000-1) regarding how and when color management shall be applied during transparency rendering.

In the upcoming PDF 2.0 Specification (ISO 32000-2), which is expected to be publish next year, the chapter on transparency has been rewritten completey and greatly enhanced.

In his blog Martin Bailey (CTO of Global Graphics and member of multiple ISO committees) describes some details of the enhancements for tranparency rendering in PDF 2.0.

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