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Mobile app · PDF: read, create, edit

Jotdown

Offline PDF reader with OCR and academic annotations.

  • Completely free
  • Android
  • Open source

Overview

Jotdown is a PDF reader, available on Android.

Features described in its F-Droid listing and in its GitHub repository: text recognition (OCR) and offline use.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Offline PDF reader with OCR and academic annotations.” — F-Droid, 10 November 2026
  • “Offline PDF reader with OCR and academic annotations.” — F-Droid, 10 November 2026
  • “Reading, annotating and organizing your documents works fully offline; network is only used for optional DOI citation import and dictionary downloads.” — F-Droid, 10 November 2026
  • “Export to Markdown (.md), TXT and PDF” — F-Droid, 10 November 2026
  • “Dark mode support” — F-Droid, 10 November 2026

At a glance

Jotdown is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No advertising
  • Commercial use allowed

Sources and checks

  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Facts collected from LicitPro automatic classification () —
  • Last technical check: 5 November 2026
  • Description from F-Droid — F-Droid (citation courte)

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