Support WEBP images

[DavidGP]

The WEBP format offers much superior compression over JPEG, JPEG2000 and even PNG, while additionally supporting transparency.

Are there any plans already when WEBP will be included in the PDF specification?

[petervwyatt]

ISO TC 171 SC 2 working groups have been researching the addition of new 2D image codecs into PDF for quite a while, with consideration given to various codecs (not file formats) to achieve smooth integration, supporting the advanced PDF transparent imaging model, the wide variety of PDF color spaces (incl. possible future support for HDR), IP, consideration for HW, meeting the needs of industry verticals (such as graphic arts and long-term preservation), etc. From an original long list of possibilities which included WebP with VP8 compression, the research of the working groups is now focused on AVIF with AV1 and JPEG-XT. This work still has a way to go but, no, WebP will not be supported in PDF in the foreseeable future.

[AlphaJack]

Are there updates regarding AVIF support?

[petervwyatt]

Yes - we have an internal TWG actively working on this but please understand that this also goes to HDR which then goes to color management, alpha compositing, transparency blending, etc etc. If you wish to participate please join our Imaging Model TWG.