Polar Bookshelf

Polar Bookshelf is a personal knowledge repository that allows you to store, organize and manage your documents and web pages. It's a great way to keep your information in one place and easy to find.

With Polar Bookshelf, you can:

- Store PDF documents, web pages, and more.

- Highlight text, add notes, and draw diagrams.

- Create custom document collections.

- Share documents with others.

- Sync documents with other devices.