Aspose.PDF for Java - Aspose.Pdf is a Java PDF component to create PDF documents without using https://alternativeto.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents
Microsoft Word - Microsoft Word is a commercial word document processor for Windows.
IronPDF - SDK for creating and editing PDFs.
Apache OpenOffice Writer - Open-source word processor of the Apache OpenOffice suite.