name: 'Polar Bookshelf'
description:
  'Polar is a personal knowledge repository for PDF and web content supporting
  incremental reading and document annotation.'
website: 'https://getpolarized.io'
repository: 'https://github.com/burtonator/polar-bookshelf'
keywords:
  - books
  - PDF
  - annotations
  - document collaboration
  - incremental reading
  - spaced repetition
  - anki
  - flashcards
youtube_video_url: 'https://www.youtube.com/watch?v=h5ZY2z_vgOg'
category: 'Education'
license: 'GPL'
