PDFNote Web

A synchronized PDF viewer and page-by-page Markdown notebook. Easily read, annotate, and take rich, structured notes dynamically linked to each page of your PDF documents.

Usage

PDFNote Web runs entirely in your browser. You can access and use the live application directly here:

https://borish127.github.io/PDFNote_web/

Features

• Page-by-Page Synchronization: Taking notes on the Markdown workspace automatically binds them to the active PDF page. Advancing or switching pages automatically saves the active note and loads the corresponding notes page.
• Rich Markdown Editor: A fast CodeMirror 6 markdown editor equipped with formatting accelerators (Headers, Bold, Italic, Code blocks, Lists, Links, Images, and Mermaid charts).
• Click-to-Expand Lightbox: Click on any image or Mermaid diagram in markdown visualization mode to open it in a beautiful full-screen blurred lightbox viewer. Supports keyboard dismissals (Escape key).
• Visual PDF Annotations: Draw directly on the PDF, highlight or underline text, place custom text overlays, or add digital signatures. Markups scale and align perfectly when zooming or resizing viewports.
• Local Folder Synchronization: Connect directly to a folder on your device using the File System Access API. PDFNote will automatically read and auto-save individual markdown pages, annotations, and pasted assets directly to your disk.
• Session Restoration & Crash Recovery: Auto-saves your work every 3 seconds to IndexedDB. If you accidentally close the tab or experience a browser crash, the app will prompt you to restore your exact session on reload.
• 100% Client-Side: No servers, no accounts, and no data collection. All PDF rendering, markdown compilation, and storage operations run locally inside your browser sandbox.

Local Development

If you want to run or build the application locally:

1. Clone the repository

git clone https://github.com/borish127/PDFNote_web.git
cd PDFNote_web

2. Install dependencies

npm install

3. Run development server

npm run dev

4. Build for production

npm run build

The compiled static assets will be outputted to the dist/ directory, ready to be hosted on any static file provider (e.g. GitHub Pages).

Feedback & Suggestions

Feedback, bug reports, and suggestions are welcome! Feel free to open an issue or submit a pull request on the repository:

https://github.com/borish127/PDFNote_web/issues

License

This project is licensed under the GNU General Public License v3.0 (GPL-3.0). See the LICENSE file for more details.