Sigil ebook editor for Linux, is a free, open-source editing software for e-books in the EPUB format.
As a cross-platform application, Sigil is distributed for the Windows, macOS, Haiku and Linux platforms under the GNU GPL license.
Sigil supports both WYSIWYG and code-based editing of EPUB files, as well as the import of HTML and plain text files.
Sigil has been developed by Strahinja Val Marković and others since 2009.
Okular reader for DJVU, PDF, EPU, is a universal document viewer for Linux, developed by KDE.
It works on multiple platforms, including but not limited to Linux, Windows, Mac OS X, *BSD and has a Flatpak install.
Okular is a lightweight universal document viewer that provides support for installation of plugins, to support a wide variety of document formats.
MuPDF for Linux a lightweight XPS and PDF viewer.
MuPDF consists of a software library, command line tools, and viewers for various platforms.
The renderer in MuPDF is tailored for high quality anti-aliased graphics.
It renders text with metrics and spacing accurate to within fractions of a pixel for the highest fidelity in reproducing the look of a printed page on screen.
The viewer is small, fast, yet complete.
Gscan2pdf for Linux is an open source project that provides users with an easy to use, modern and powerful application for producing multi-page PDF and/or DjVu files from multiple scanned documents.
Features include the ability to scan any document type, produce single-page or multi-page PDF files, generate single-page or multi-page DjVu files, automatic creation of text resource files in the .gscan2pdf format, compress temporary files, email PDFs, print documents and much more.
Very cheap all-in-one solution.
Offer valid from September 12 to October 18.
New offer 85% off + 3 months extra. They have also fixed their Linux client so you are recommended to update to version:1.1.
