LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
Wondershare PDFelement - All-in-one PDF editor