Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from ...

But this is such a niche area that monochrome cameras are few and far between, and even Pentax says it’s only producing small quantities of this camera at a time. It’s based on the Pentax K-3 III, so ...