When comparing Xournal++ vs Mark Text, the Slant community recommends Xournal++ for most people. In the question“What are the best note taking apps for UNIX-like systems?” Xournal++ is ranked 15th while Mark Text is ranked 27th. The most important reason people chose Xournal++ is:
Fill shape functionality, shape drawing (line, arrow, circle, rect, spline), shape resizing and rotation.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Advanced PDF annotation tools
Fill shape functionality, shape drawing (line, arrow, circle, rect, spline), shape resizing and rotation.
Pro Supports pen input from devices such as Wacom tablets
Pro LaTeX support (requires a working LaTeX install)
Pro PDF, PNG export
PDF Export (with and without paper style);
PNG Export (with and without transparent background)
Pro Grid and rotation snapping
Pro SUPPORT
Pro Plugins using LUA scripting
Pro Audio recording and playback alongside with handwritten notes
Pro Open Source
Pro WYSIWYG or TEXT visualisation
Pro Has RTL language support
Can be used with languages such as Hebrew and Arabic.
Pro Very light : 103 Mb only
Cons
Con Not lightweight
On Windows 10 the installed size was 259 Mb, no surprise as this is an Electron based app.
Con Not a WYSIWYG editor, no formated preview
There is only plain text editing.