Imaging Model TWG

Unlike many other areas of PDF, the PDF imaging model has not changed since PDF 1.5, in 2003.

The Imaging Model Technical Working Group (TWG) is for PDF Association members with experience and/or interest in rendering, color management, fonts, graphic elements, raster file formats or transparency.

In this group we'll come together to help define the future of the PDF imaging model.

Based on feedback from members of ISO TC 171 SC 2 and ISO TC 130 WG 2 as well as other contributors, some of the areas already designated for review include:

• New raster image formats (e.g., AVIF & JPEG XL)
• HDR (High Dynamic Range) rendering
• NChannel transparency blending
• Modern font features, including color, variability, transparency, and animation
• Variable width strokes

The Imaging Model TWG is co-chaired by Leonard Rosenthol, ISO Project Leader of PDF/A-4 and PDF/X-6, and Peter Wyatt, CTO of the PDF Association and ISO Project Leader for ISO 32000.

All PDF Association members are invited to join the TWG via the Member Area.