Note

This README was generated by SKILL, get the ZH version from here.

Warning

Archived on 2026-10-30. pdf2image is no longer maintained. The final release is v1.1.2; npm i @pardnchiu/pdf2image and the jsDelivr build remain available, but no new features, bug fixes, or security updates will be published, and issues and pull requests are no longer accepted.

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TURN ANY PDF INTO IMAGES RIGHT IN THE BROWSER!

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A JavaScript browser library with PDF-to-image conversion, live progress overlay, and one-click ZIP download

Table of Contents

• Features
• Architecture
• License
• Author

Features

npm i @pardnchiu/pdf2image · Documentation

• Client-Side Conversion — pdf.js renders each PDF page to PNG, JPG, or WebP inside the browser, so files never leave the user's machine.
• Zero-Config Dependencies — A single script tag preconnects to the CDN and loads pdf.js, JSZip, and the stylesheet automatically.
• Concurrent Page Rendering — All pages render to canvas in parallel, with an adjustable scale to trade quality for speed.
• Built-in Progress Overlay — Conversion and compression show a percentage overlay that switches between Chinese and English based on browser locale.
• One-Click ZIP Download — JSZip bundles the output images, and filenames accept a yyyy-MM-DD hh:mm date template.

Architecture

Full Architecture

graph TB
    Script[pdf2image.js loaded] --> CDN[CDN dependency injection<br/>pdf.js / JSZip / CSS]
    App[Caller] --> Converter[pdf2image class]
    Converter -->|convert| PDFJS[pdf.js render<br/>canvas → Data URL]
    Converter -->|download| ZIP[JSZip bundle<br/>Blob download]
    PDFJS --> Loading[Progress overlay]
    ZIP --> Loading
    PDFJS --> Images[images array]

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License

This project is licensed under the MIT LICENSE.

Author

Just open an issue to share an idea.

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©️ 2024 邱敬幃 Pardn Chiu