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As with Adobe Acrobat, Nitro PDF Pro's reader is free; but unlike Adobe's free reader, Nitro's free reader allows PDF creation (via a virtual printer driver, or by specifying a filename in the reader's interface, or by drag-'n-drop of a file to Nitro PDF Reader's Windows desktop icon); Ghostscript not needed. PagePlus: Proprietary: No
Zathura is a free, plugin-based document viewer. Plugins are available for PDF (via poppler or MuPDF), PostScript and DjVu. It was written to be lightweight and controlled with vi-like keybindings. Zathura's customizability makes it well-liked by many Linux users. [4]
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.
WeeChat IRC client allows scripts to be written in Lua. WinGate proxy server allows event processing and policy to execute Lua scripts with access to internal WinGate objects. Wireshark network packet analyzer allows protocol dissectors, post-dissectors, and taps to be written in Lua. [34] X-Plane uses lua for aircraft systems and plugins.
Skim is an open-source PDF reader. It is notably the first free software PDF reader for macOS. [2] It is written in Objective-C, and uses Cocoa APIs. It is released under a BSD license. It is also cited as being able to help annotate and read scientific papers. [3]
The C API also provides some special tables, located at various "pseudo-indices" in the Lua stack. At LUA_GLOBALSINDEX prior to Lua 5.2 [21] is the globals table, _G from within Lua, which is the main namespace. There is also a registry located at LUA_REGISTRYINDEX where C programs can store Lua values for later retrieval.
The script at Module:LuaCall has been written to accept any set of named parameters somename=value, for each one storing the string value in the variable with the name somename, and then allowing you to use these variables as parameters for any function available in Lua. The script then returns only the first value returned by the function (Lua ...
LuaTeX is a TeX-based computer typesetting system which started as a version of pdfTeX with a Lua scripting engine embedded. After some experiments it was adopted by the TeX Live distribution as a successor to pdfTeX (itself an extension of ε-TeX, which generates PDFs).