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Writer has all the features you need from a modern, full-featured word processing or desktop publishing tool.

Google Docs is an online word processor, part of Google Drive , that lets you create and format text documents and collaborate with other people in real time. Here's what you can do with Google Docs:

Microsoft Word, part of the Microsoft Office Suite but also sold as a standalone application, is Microsoft's word processor. Its proprietary (but open-specification) DOC format is considered a de-facto standard, although from 2007 and above, Word uses DOCX.

Writer, part of the Apache OpenOffice suite, is an open-source word processor. It supports the ISO standard Open Document Format (ODF) for data interchange as its default file format, as well as Microsoft Office 97-2003 formats, Microsoft Office 2007 format (ability to "open" documents in version 3), among others.

AbiWord is a free software word processor. The name "AbiWord" (pronounced "Abby Word") is derived from the root of the Spanish word "abierto", meaning "open". It runs on Linux, Mac OS X (PowerPC), Microsoft Windows, ReactOS, BeOS (unsupported), AmigaOS 4.0 (through its Cygnix X11 engine), and other operating systems. Multilingual Portable version (15MB installed) from http://portableapps.com/apps/office/abiword_portable .

LyX is a document processor. It combines the power and flexibility of TeX/LaTeX, an advanced typesetting system, with the ease of use of a graphical interface.

Texmaker is a free LaTeX editor, that integrates many tools needed to develop documents with LaTeX, in just one application.

TeXstudio is an integrated environment for writing LaTeX documents. Our goal is to make writing LaTeX as easy and comfortable as possible. Therefore TeXstudio has numerous features like syntax-highlighting, integrated viewer, reference checking and various assistants.

Real Time LaTeX CollaborationThe version you are looking at is always the most up to date. Watch other users update the same document you are working on in real time.

Overleaf, formerly WriteLaTeX, is a collaborative writing and publishing system that makes the whole process of producing academic papers much quicker for both authors and publishers.

Fidus Writer is an online collaborative LaTeX editor especially made for academics who need to use citations and/or formulas. The editor focuses on the content rather than the layout, so that with the same text, you can later on publish it in multiple ways: On a website, as a printed book, or as an ebook. In each case, you can choose from a number of layouts that are adequate for the medium of choice.

TeXnicCenter is a feature rich and easy-to-use integrated environment for creating LaTeX documents on the Windows platform. Its powerful editor and its tight integration with the LaTeX environment helps you to concentrate on what matters: The content of your document. And best of all: TeXnicCenter is open source software and available completely free of charge!

Kile is a TeX/LaTeX editor providing a user friendly environment to edit TeX/LaTeX source code.

Free Cisdem PDFSigner for Mac is the right choice to sign PDF securely and legally. With this reliable tool, you no longer have to sign PDF with paper, printer, scanner and fax machine. Instead, you can just digitally sign it with your mouse or trackpad, or directly add scanned signature in image. Then, you can even edit the signature by rotating, changing color, amplifying, lessening, etc., to give your signature a perfect view. Besides, it has an simple and beautiful interface, which lets you easily and quickly add the signature you want. For all-in-one PDF solution, please check Cisdem PDFManagerUltimate! »