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.
Pdf+ - Pdf+ is a reader for PDF documents, which are also known as Adobe Acrobat files.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Easy PDF - EasyPDF is a free online PDF conversion suite that can help you convert & create PDFs. Securely, anonymously and without any limitations.
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
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.