Imaging Model TWG
Background
PDF’s core imaging model has not changed since the addition of transparency to PDF 1.4 in 2003.
The Imaging Model Technical Working Group (TWG) is the meeting place for the work associated with research and development of proposals for significant changes to rendering, color management, 2D raster file formats, and transparency blending (outcomes of Symposium on Advancing PDF).
Objective
Key subjects under consideration include, but are not limited to:
- HDR (High Dynamic Range) rendering
- New raster image formats (e.g., AVIF & JPEG XL)
- Improved compression (e.g., Brotli) and streaming capabilities
- NChannel transparency blending
- New capabilities with ICC profiles
Other areas of interest in the overall project of Advancing the PDF imaging model are being taken up in the PDF TWG, the Rich Media TWG, and other Working Groups as may be developed to meet specific areas of development.
Accomplishments
How to participate in the Working Group
It’s possible to participate in the Working Group without attending meetings!
- Working group members may attend the working group’s online meetings – currently quarterly on the third Thursday of the month, 2205–2300 CET / 1605–1700 ET / 1305–1400 PT, or review meeting notes and recordings of previous calls.
The Cryptography and Provenance TWG is open to all PDF Association Individual, Division, Full, Partner and Institutional members.
Join this working group to:
- Access the working group’s private Google Drive area with working documents
- Participate via the mailing list and view mailing list archives
- Participate in the approval and publication process
- Access meeting recordings and notes
- Access and provide comments on related ISO documents
PDF Association members can join the Imaging Model TWG by visiting the Member Area and clicking “Manage Working Groups”.
