Xournal++ is a hand note-taking software written in C++ with the target of flexibility, functionality and speed. Stroke recognizer and other parts are based on Xournal Code, which you can find at sourceforge. It supports GNU/Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows. Supports pen input from devices such as Wacom Tablets.

Xournal++ features:

• Supports pressure-sensitive styluses and digital pen tables (e.g. Wacom, Huion, XP Pen, etc. tablets)
• Paper backgrounds for note-taking, scratch paper, or whiteboarding
• Annotate on top of PDFs
• Select text from the background PDF, copy, highlight or underline it or strike it through
• Follow links from the background PDF
• Export to a variety of formats including SVG, PNG and PDF, both from the GUI and command line
• Different drawing tools (e.g. pen, highlighter) and stroke styles (e.g. solid, dotted)
• Shape drawing (line, arrow, circle, rectangle, spline)
• Use the set-square and compass tools for measurements or as a guide for drawing straight lines, circular arcs and radii
• Fill shape functionality
• Shape resizing and rotation
• Rotation and grid snapping for precise alignment of objects
• Input stabilization for smoother writing/drawing
• Text tool for adding text in different fonts, colors, and sizes
• Enhanced support for image insertion
• Eraser with multiple configurations
• LaTeX support (requires a working LaTeX installation) with customizable template and a resizable editor with syntax highlighting
• Sidebar containing page previews with advanced page sorting, PDF bookmarks and layers (can be individually hidden/edited)
• Allows mapping different tools/colors etc. to stylus/mouse buttons
• Customizable toolbar with multiple configurations, e.g. to optimize toolbar for portrait/landscape
• Custom color palette support using the .gpl format
• Page template definitions
• Bug reporting, autosave, and auto backup tools
• Audio recording and playback alongside with handwritten notes
• Multi language support (over 20 languages supported)
• Plugins using Lua scripting