parallax/jsPDF

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

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#3,083 建立於 2021年2月3日

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 (4 留言) (3 反應) (0 負責人)JavaScript (28,280 star) (4,596 fork)batch import
Feature Requesthelp wanted

描述

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?

貢獻者指南

技術棧
javascriptnodejs
領域
api
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
JavaScriptNode.jsjsPDF basics
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
35
研究方向
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.