parallax/jsPDF

Noto Sans JP not working

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#3152 opened on May 3, 2021

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 (7 comments) (6 reactions) (0 assignees)JavaScript (28,280 stars) (4,596 forks)batch import
Bughelp wanted

Description

I can't find a way to use Japanese font with jsPDF.

I've created the font with the fontconverter using Noto Sans JP from Google Font, I've imported it but I can't use any Glyphs that I find on the Google Font page here: https://fonts.google.com/specimen/Noto+Sans+JP#glyphs

I can see that the font is imported because it changes if I remove the font script.

Here is a CodeSandbox that reproduces the error: https://codesandbox.io/s/busy-joliot-jwjy8?file=/main.js

I also tried with others fonts, without any better results.

I am using jsPDF in a web application with users from all around the world and I am gettings requests from Japanese to handle it. Any help would be very appreciated!

Thanks

Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
needs maintainer response
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
basic jsPDF usagefont conversion knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate the font embedding mechanism in jsPDF, particularly how glyphs are encoded for CJK fonts. The user provided a CodeSandbox (https://codesandbox.io/s/busy joliot jwjy8) that reproduces the issue. Check existing issues or PRs related to Japanese font support. The problem may be in the addFileToVFS or addFont methods, or in the default encoding not supporting Japanese characters. Look at the fontconverter output format and compare with supported formats.