- From: Bernhard F. (RealObjects) via GitHub <sysbot+gh@w3.org>
- Date: Mon, 31 Mar 2025 09:14:35 +0000
- To: public-css-archive@w3.org
bernhardf-ro has just created a new issue for https://github.com/w3c/csswg-drafts: == [mediaqueries][mediaqueries-4][mediaqueries-5] `color`, `color-gamut` and `dynamic-range` when outputting PDF == While PDF output can be considered as printing for most media queries there are some that are specific to the display or printer used, like `color`, `color-gamut` and `dynamic-range`. It would be helpful if the specifications of all display-specific queries would explicitly cover print, PDF and other non-screen cases. Some queries, like `color-gamut`, should also specifically mention how to handle non-RGB cases, especially CMYK. As an example, what should be the value of `color` for PDF? PDF supports images with up to 16 bpc (8 before PDF 1.5). However, colors for text and shapes are specified as real numbers between 0.0 and 1.0, stored as strings with no apparent limit to precision. So technically PDF has infinite bpc, however we can assume most PDF viewers (and printers) use 32 bit float or 64 bit double numbers. Those would guarantee the equivalent of 24 or 53 bit, respectively, for the range 0.0 to 1.0. Would either of these values be a good solution or would a default of 8, 16 or 32 be better? Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/12027 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Monday, 31 March 2025 09:14:36 UTC