TeX Live 是 TUG (TeX User Group) 维护和发布的 TeX 系统，可说是「官方」的 TeX 系统。我们推荐任何阶段的 TeX 用户，都尽可能使用 TeX Live，以保持在跨操作系统平台、跨用户的一致性。

TeX Live 在 macOS/OS X 上的名字是 MacTeX，它的官方站点是 https://tug.org/mactex。你可以在这里下载 MacTeX 的安装器，而后安装 MacTeX。

LaTeX是TeX的扩展，又称为宏集，简单说就是TeX的命令太原始了，为了方便作者写作，Leslie Lamport给TeX语言加入了很多新的功能，这些他写的功能跟TeX加在一起被称为LaTeX。LaTeX当然也是一门语言，是基于TeX的一门语言；LaTeX 是基于ΤΕΧ的排版系统，由美国计算机学家莱斯利·兰伯特（Leslie Lamport）在20世纪80年代初期开发，利用这种格式，即使使用者没有排版和程序设计的知识也可以充分发挥由TeX所提供的强大功能，能在几天，甚至几小时内生成很多具有书籍质量的印刷品。对于生成复杂表格和数学公式，这一点表现得尤为突出。因此它非常适用于生成高印刷质量的科技和数学类文档。这个系统同样适用于生成从简单的信件到完整书籍的所有其他种类的文档。

TeX Live是一个TeX发行版，它是一组程序的集合，主要作用就是将你写的TeX代码进行解析排版输出成PS或者pdf。“TeX发行版相对于TeX语言”大致可以理解为“C语言编译器(如GCC或Clang)相对于C语言”的关系；

TeX Live is intended to be a straightforward way to get up and running with the TeX document production system. It provides a comprehensive TeX system with binaries for most flavors of Unix, including GNU/Linux and macOS, and also Windows. It includes all the major TeX-related programs, macro packages, and fonts that are free software, including support for many languages around the world. Many Unix/GNU/Linux operating systems provide TeX Live via their own distributions and package managers.

About TeX Live, MacTeX, and BasicTeX

TeX Live is the standard distribution of TeX, LaTeX, and related programs produced by TeX Users Groups across the world. The distribution runs on the Macintosh, Windows, Linux, and Unix machines, using the same packages and fonts on all of these platforms. The binary programs are compiled separately for each platform, but from the same source code. The icon at the top right of our web pages is a link which takes you to the home page of the English language TeX Users Group (TUG).

MacTeX is a package which installs TeX Live on the Macintosh. The package is notarized by Apple and uses Apple’s standard install technology. It contains native code for both Intel and Arm processors. When installation is complete, the software is fully configured and ready to use. The icon at the top left of our web pages is a link which takes you to this MacTeX home page.

The MacTeX working group inside TUG provides two install packages. One, BasicTeX, is relatively small, about 90 MB, but fully capable of typesetting standard TeX and LaTeX documents. The other, MacTeX, is much larger and includes essentially all software available for typesetting with TeX-like systems, including TeX, LaTeX, XeTeX, LuaTeX, ConTeXt, etc. This complete system supports almost every written language in use today, including languages of Western Europe, Russian, Greek, Arabic, Hebrew, Persian, Chinese, Japanese, Korean, and a multitude of more obscure scripts.

BasicTeX and MacTeX can coexist on the same machine, so users experimenting with TeX may reasonably install BasicTeX to try it out. The full MacTeX is recommended if you are certain that you will use TeX, even if you are a beginner, because any example in a book will automatically work and no time will be wasted adding extra missing components to the distribution.

TeX Live 官方网站：https://tug.org/texlive

下载地址

专业排版 TeX Live 2023（20230314） for Mac&Win&Linux
夸克云盘：https://pan.quark.cn/s/5cb098dfd912
百度网盘：https://pan.baidu.com/s/1Ryl6jLlLm7r10KAOE5XQ7g?pwd=ldlj
123云盘：https://www.123pan.com/s/PjcA-AgNRA.html

Windows 和 Linux:
清华大学镜像站：https://mirrors.tuna.tsinghua.edu.cn/CTAN/systems/texlive/Images/texlive.iso
中国科学技术大学镜像站：http://mirrors.ustc.edu.cn/CTAN/systems/texlive/Images/texlive.iso

Mac：
官网下载：http://tug.org/cgi-bin/mactex-download/MacTeX.pkg
清华大学镜像站：https://mirrors.tuna.tsinghua.edu.cn/CTAN/systems/mac/mactex/MacTeX.pkg
中国科学技术大学镜像站：http://mirrors.ustc.edu.cn/CTAN/systems/mac/mactex/MacTeX.pkg

安装说明：

• Windows 用户右键单击 install-tl-advanced.bat，以管理员权限执行；
• Linux 用户执行 install-tl。