PDF-XChange
Fast and feature-rich PDF viewer and editor with powerful annotation tools
Productivity4.8
Looking for Knovum alternatives? Here are the best free software options with similar features and functionality.
Local-first AI knowledge workspace: an infinite canvas where your notes, pages, recordings and documents become cited answers.
Fast and feature-rich PDF viewer and editor with powerful annotation tools
All-in-one workspace for notes, tasks, wikis, and databases
Organize work and life with a task manager that stays out of your way
Free handwritten notes and PDF annotation with your stylus
Visual Kanban boards for projects and teams
Free, open source note-taking and to-do app with end-to-end encryption
Lightweight PDF and eBook reader
Organize team tasks, projects and goals in one place