calibre : Ebook management application ( https://calibre-ebook.com/ )
master-pdf-editor : Master PDF Editor - complete solution for PDF documents ( https://code-industry.net/free-pdf-editor/ )
pdf2djvu : A tool to create DjVu files from PDF files ( https://github.com/FriedrichFroebel/pdf2djvu )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a joecool-overlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/joecool-overlay-portage
If you have a problem : ycarus(-at-)zugaina.org