install MacTeX june 2017, TeX LaTeX AMSTeX TeXShop BibDesk LaTeXiT TeXLive --> 5.8 Gb

MacTeX-2017
June, 2017
For Yosemite (macOS 10.10) and Higher

This installer provides all the software needed to use the TeX typesetting system on Mac OS X. All of the software is fully configured and ready to use. Included are

• the actual TeX program, and the XeTeX extended version with Unicode and native font support;
• macro packages, such as LaTeX, AMSTeX, and ConTeXt
• TeXShop, graphical user interface for TeX
• Ghostscript, required by certain TeX utilities

A custom install option is available for users who only need some of the software provided.

If you are new to TeX, consult the README installed in /Applications/TeX to begin learning and using TeX.
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This installer provides all the software needed to use the TeX typesetting system on Mac OS X. All of the software is fully configured and ready to use. Included are

• the actual TeX program, and the XeTeX extended version with Unicode and native font support;
• macro packages, such as LaTeX, AMSTeX, and ConTeXt
• TeXShop, a graphical user interface for TeX
• Ghostscript, a free postscript interpreter used by certain TeX utilities
• BibDesk, an editor for BibTeX databases
• LaTeXiT, a utility to typeset LaTeX equations and export the resulting PDF by drag and drop
• TeX Live Utility, a utility to administer TeX Live and update packages in it over the network
• cocoAspell, an extension of Apple's built-in spell checker which understands LaTeX
•  Excalibur, a spell checker for TeX source code

The underlying TeXLive distribution is extensive, containing most binaries, fonts, styles, and packages used in the TeX community. It is a repackaging of the full TeX Live distribution from the TeX Users Group (TUG), and installs that distribution exactly as it would appear if installed from the TeX Live DVD.

A custom install option is provided for users who want only part of the package. The package contains Ghostscript; users who already have Ghostscript may want to use custom install to avoid the version provided here. 

Among the programs installed by the package is TeXShop, a graphical interface to the TeX typesetting tools. TeXShop will be in your Applications folder in a subfolder named TeX and you can drag its icon to the dock if you wish. The TeX folder contains a README file explaining technical details of TeX Live for experienced users, and explaining how to start using and learning TeX for beginners.

Some programs in TeX need to know whether you are using letter-size paper or A4-size paper. The installer tries to guess the answer from your printer's default paper setting. This will work in almost all cases. If you run into problems, run TeX Live Utility in /Applications/TeX and select "Change Paper Size..." in the Actions menu. 

The installer adds BibDesk, Excalibur, LaTeXiT to the TeX folder in your Applications folder. All are standard Mac programs which can be uninstalled by just dragging them to the trash.

The TeX typesetting system consists of several command line programs and a large number of supporting files. These tools are installed in /usr/local, a directory not visible in the Finder. Inside the system Library folder you will find a subfolder named TeX; the Root file inside this folder is a link to the TeX directory tree which makes it visible to the Finder. So you can examine the files if you are curious.  It is usually not necessary to look at the command line files because they are automatically accessed by TeX as needed. 

If you have used TeX on another system, you may have needed to modify $TEXINPUTS, $PATH, and other shell variables; these are handled automatically on Mac OS X. Occasionally you will want to add additional style files and the like to TeX; to do so, create the directory "texmf" inside your personal Library folder in your home directory, and put additional files in subdirectories of this folder. For instance, LaTeX will find any file in

~/Library/texmf/tex/latex

or a subdirectory of this folder.

For more information about TeX, see http://tug.org, in particular http://tug.org/begin.html for links to a number of introductory resources. For more information about this MacTeX distribution, see http://tug.org/mactex.

Ref

http://www.tug.org/mactex/mactex-download.html