roadsunknown
commented
3 years ago The AMP specification does support custom fonts (https://amp.dev/documentation/guides-and-tutorials/develop/style_and_layout/custom_fonts/?format=websites). As well, many themes and plugins (e.g. https://wordpress.org/plugins/custom-fonts/) already support custom fonts so there is significant experience in the community. Also, users who are already using custom fonts should be able to reference existing fonts stored in the media library.
swissspidy
dreamofabear
bmattb
Feature Description
Some users have expressed interest in being able to use custom fonts that are not available on Google Fonts (example). For example, fonts that have extended support for languages like Persian.
Fonts that have been mentioned include:
https://github.com/rastikerdar/vazir-font https://github.com/rastikerdar/shabnam-font https://fontiran.com/%d8%ae%d8%a7%d9%86%d9%88%d8%a7%d8%af%d9%87-%d9%81%d9%88%d9%86%d8%aa-%d8%a7%db%8c%d8%b1%d8%a7%d9%86-%d8%b3%d9%86-%d8%b3%d8%b1%db%8c%d9%81-iran-sans-%d9%be%d9%86%d8%ac-%d9%88%d8%b2%d9%86-%d9%87%d9%85/ https://fontiran.com/%d9%81%d9%88%d9%86%d8%aa-%d8%a7%db%8c%d8%b1%d8%a7%d9%86-%db%8c%da%a9%d8%a7%d9%86-iran-yekan/
Enabling users to upload custom fonts like these would probably require quite some work as we need to support multiple variants per font, various file types per variant, and also need to extract metrics from the fonts like we do for all the other fonts.
Alternatives Considered
Additional Context
Possibly related: #4614
For extracting font metrics we use opentype.js which luckily also supports running in the browser. So that would be possible to implement without any workarounds (e.g. using an API for that).
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Acceptance Criteria
Implementation Brief