PDF Mix Tool

Important note: you need to install an xdg-desktop-portal backend in order for the application to work correctly. Install one of these two packages based on your desktop environment:

- xdg-desktop-portal-gtk
- xdg-desktop-portal-kde

PDF Mix Tool is a simple and lightweight application that allows you to
perform common editing operations on PDF files.

Base operations it can perform are the following:

- Merge two or more files specifying a page set for each of them
- Rotate pages
- Composite more pages onto a single one (N-up)
- Combinations of all of the above

Besides, it can also mix files alternating their pages, generate booklets,
add white pages to a PDF file, delete pages from a PDF file, extract pages
from a PDF file, edit the PDF document information.