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Apache Lucene is a free and open-source search engine software library, originally written in Java by Doug Cutting. It is supported by the Apache Software Foundation and is released under the Apache Software License. Lucene is widely used as a standard foundation for production search applications.
Xcas. Xcas/Giac is an open-source project developed at the Joseph Fourier University of Grenoble since 2000. Written in C++, maintained by Bernard Parisse's [ fr] et al. and available for Windows, Mac, Linux and many others platforms. It has a compatibility mode with Maple, Derive and MuPAD software and TI-89, TI-92 and Voyage 200 calculators.
OpenSearch is a Lucene -based search engine that started as a fork of version 7.10.2 of the Elasticsearch service. [4] [2] It has Elastic NV trademarks and telemetry removed. It is licensed under the Apache License, version 2, [2] without a Contributor License Agreement. The maintainers have made a commitment to remain completely compatible ...
Open source multi-backend library for viewing and manipulating PDF files. Bundled with a viewer with the same name for the X Window System. PDF Studio: Proprietary: Yes Yes Software for viewing and editing PDF documents Inkscape: GNU GPL: Yes Technically not a PDF editor, but can be used as such page by page Adobe Reader: Proprietary freeware Yes
" The source code is currently hosted on GitHub. History. The first version of Sumatra PDF, designated version 0.1, was based on Xpdf 0.2 and was released on 1 June 2006. It switched to Poppler from version 0.2. In version 0.4, it changed to MuPDF for more speed and better support for the Windows platform. Poppler remained as alternative engine ...
MuPDF is a free and open-source software framework written in C that implements a PDF, XPS, and EPUB parsing and rendering engine. It is used primarily to render pages into bitmaps, but also provides support for other operations such as searching and listing the table of contents and hyperlinks. The focus of MuPDF is on speed, small code size ...
Searx ( / sɜːrks /; stylized as searX) is a free and open-source metasearch engine, [4] available under the GNU Affero General Public License version 3, with the aim of protecting the privacy of its users. [5] [6] [7] To this end, Searx does not share users' IP addresses or search history with the search engines from which it gathers results.
Yes. Website. iso .org /standard /75839 .html. Portable Document Format ( PDF ), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.