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Drawboard PDFXournal++
Freemium

Free to download, with paid plans for additional features and teams.

 Free

Free and open source under the GPL 2.0.

Windows, macOS, Android, iOS, Web Windows, macOS, Linux
  • Markup tools designed for pen and touch input
  • Annotations sync live across all devices
  • Pressure-sensitive stylus support on Wacom, Huion and XP-Pen tablets
  • Annotates on top of PDFs while keeping their text selectable
  • Team review features are aimed at architecture and engineering
  • Advanced features sit behind paid plans
  • Not a PDF editor; it draws on top rather than changing the document
  • Touch and palm rejection need configuration on some tablets
Downloadable app, Web application Downloadable app
Closed source Open source
License not stated License: GPL-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 23, 2026

Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.