Small python-gtk application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface - pdfarranger/pd...
Note: These instructions are intended for developers wanting to create Windows applications based on GTK, not for end-users. On Windows, GTK applications are typically bundled with GTK already, so end-users do not need to worry about how to install GTK itself.
I notice it has a windows installer. How does GTK work on windows?
This might answer your question : https://www.gtk.org/docs/installations/windows/
Huh I wondered if it was possible to bundle the whole toolkit with it. That seems to be how a lot of windows apps tend to be anyways.