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

Xournal++

Install on Linux