RadaeePDF - RadaeePDF is a library for developers who want to render, manipulate, annotate PDF files on Android, iOS and Windows.
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.
SignRequest for G Suite - Sign yourself or get documents signed Easy, secure, legally binding and free. SignRequest helps you sign online.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
genei.io - AI-generated summaries for any article or research paper.
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.