Pdf+ - Pdf+ is a reader for PDF documents, which are also known as Adobe Acrobat files.
Sigil - Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.
FoxyUtils Online PDF Tools - All the PDF tools you need! Save time with our easy to use online tools to merge, split, convert, and edit PDF files.
Jutoh - Epub editor, convertor and creator software for Mac and PC.
PDF Reader Pro - PDF Reader Pro is an all-in-one PDF office supporting to Read, Annotate, Edit, OCR, Convert, Create & Fill Form, Sign PDFs, TTS on Mac, iOS, Android, and Windows.
calibre - Ebook manager, viewer & converter