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PDF is a file format developed by Adobe in 1992 to present documents independently of software, hardware, and operating systems. It is based on PostScript, a page description language, and has evolved to support various features such as multimedia, encryption, and digital signatures.
LibreOffice is a free and open-source office productivity software suite, a project of The Document Foundation. It includes Writer, a word processor with file support for Microsoft Word or WordPerfect files, and LibreOffice Online, an online office suite with Writer, Calc, and Impress.
Free software, also known as libre software or libreware, is computer software that respects users' freedom and rights. Learn about the origin, meaning and essential freedoms of free software, and how it differs from proprietary, freeware and open source software.
Adobe Acrobat is a family of products and web services to create, view, edit, and manage PDF files. The basic Acrobat Reader is freeware and supports viewing, printing, and annotating PDF files, while the commercial Acrobat can also create, edit, and convert PDF files.
Foxit PDF Reader is a freemium tool that can create, view, edit, and print PDF files. It is developed by Foxit Software and supports various platforms, including Windows, Mac OS, Android, and iOS.
Learn about the application of copyright law to software in different countries and regions, and the distinctive issues that arise with software. Find out how software is defined, protected, and enforced as a literary work under various legal systems.
Learn about the history, definition, and benefits of free and open-source software (FOSS), an umbrella term for free software and open-source software. FOSS is software that is available under a license that grants the right to use, modify, and distribute it to everyone free of charge.
Microsoft Word is a word processor program developed by Microsoft since 1983. It is available for various platforms, including Windows, Mac, iOS, Android and web browsers, and supports features such as WYSIWYG, Rich Text Format and cloud storage.