Office and Business Tools

Calibre Calibre — free and open source software for reading and storing e-books.
PDF-XChange Viewer PDF-XChange Viewer — small free program for viewing files on a computer in PDF format.
Adobe Digital Editions Adobe Digital Editions — program created for reading text files of different formats of electronic books.
Adobe Acrobat Reader DC Adobe Acrobat Reader DC — the most common powerful program for working with PDF files.
Foxit Reader Foxit Reader — compact program for viewing and printing documents in PDF format.
PDFCreator PDFCreator — free program for translating documents from various formats to PDF format.
OpenOffice OpenOffice — suite of office applications with multilingual support, running under all operating systems.
ConstEdit ConstEdit — word processor for your computer, which is essential for your daily work.
CutePDF Writer CutePDF Writer — free program for creating, creating and printing PDF documents.
AbiWord AbiWord — program designed to work with text files, similar to Microsoft Word.
STDU Viewer STDU Viewer — that allows you to work, view and save documents in different formats.
LibreOffice LibreOffice — package for office use of an independent type with open source.