parallax/jsPDF

Request new function, global add font or clone existing jsPdf instance

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#3,083 opened on Feb 3, 2021

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 (4 comments) (3 reactions) (0 assignees)JavaScript (28,280 stars) (4,596 forks)batch import
Feature Requesthelp wanted

Description

I'm building a website use NodeJS, output PDF for customers. Currently, I call addFileToVFS() and then addFont() before every time actual draw pdf content, and this two function only cost seconds.

Is there a way to add font once and clone the jsPdf instance every time I use it, or add font to some "global object" then every new jdPdf instance can use the font? What is the best practice for NodeJS application (eg. website) for generating PDF using jsPDF with custom fonts?

Contributor guide

Tech stack
javascriptnodejs
Domain
api
Issue type
feature
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.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavaScriptNode.jsjsPDF basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Investigate how jsPDF currently handles font registration via addFileToVFS and addFont. Look at the jspdf source code (src/jspdf.js) to understand if there is an internal font cache. Explore the possibility of adding a static method to add fonts globally, or a clone method on the jsPDF instance. Also review existing issues and PRs (#3083 comments) for prior discussion. Consider the use case of repeated PDF generation in Node.js and whether a factory pattern could be used.
Request new function, global add font or clone existing jsPdf instance · parallax/jsPDF#3083 | Good First Issue