Add Emoji support

[trushar-narodia]

hi
i have one issue while i try to print emoji in pdf using encode string so its display white blank string and nothing return any error
i have this type of emoji encoded string
test\uD83D\uDE00\uD83D\uDE00\uD83D\uDE00
so how to print this string in emoji character in pdf please guide how to do this

[Nightbr]

Hey, no choice, I think you must replace emoji by the corresponding image manually when you build your HTML... I run into the same issue and it seems to be the only choice. It could be great if there is an emoji parser built in dompdf and replace automatically emojis.

[bsweeney]

Do you have a font that supports the emoji characters?

[simonschaufi]

@bsweeney The font https://github.com/googlefonts/noto-emoji/tree/master/fonts "NotoColorEmoji.ttf" supports Emojis but produces an error of missing index C

[bsweeney]

@simonschaufi seems like something about the font format is incompatible with php-font-lib. As a result there's no character info in the UFM after the font is parsed. I tried a different font, Open Sans Emoji, and the character info is generated but the emoji glyphs still do not render. I suspect the font table containing information for these characters/glyphs isn't currently supported by php-font-lib.

This will take some work to fully implement.

[Nyconing]

Emoji like 💖 isnt rendered in pdf file 😫😥 Losing original content which is causing inconsistency representation on message like caligraphy product options.

[simonschaufi]

To clarify this for all users who request this feature: It's not as trivial as it sounds. The font needs to support emojis but as I already wrote before, I tried embedding the NotoColorEmoji font and it didn't work out of the box.

[bsweeney]

Definitely something that would need to be added to php-font-lib. Doing a quick (and I mean an "oh here's an article that seems related to this topic) search and it looks like there is definitely work to be done on the php-font-lib side of things (ref). Recommend opening up an issue with that project so it's at least a known request there.

I'm not sure if there is additional work that would need to be done with Dompdf, so we'll keep this issue open.

[mohan-devs]

Is there font-lib in php which support emoji in dompdf rendering ?? anyone who implement can share the process or font-library.

[AndyGaskell]

This seems an ok short term workaround...
https://www.beaubus.com/blog/add_emoji_support_to_dompdf.html

[bsweeney]

Once dompdf/php-font-lib#140 is released we can review what additional changes may need to be made to Dompdf and/or CPDF to add support.