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Requirements ​

B.2.1 Which version of Emacs is needed? ​

preview-latex nominally requires GNU Emacs with a version of at least 28.1.

B.2.2 Which versions of Ghostscript and AUCTeX are needed? ​

We recommend to use GNU or AFPL Ghostscript with a version of at least 7.07.

preview-latex has been distributed as part of AUCTeX since version 11.80. If your version of AUCTeX is older than that, or if it does not contain a working copy of preview-latex, complain to wherever you got it from.

B.2.3 I have trouble with the display format... ​

We recommend keeping the variable preview-image-type set to dvi* (if you have dvipng or dvisvgm installed) or png. This is the default and can be set via the ‘Preview/Customize’ menu.

All other formats are known to have inconveniences, either in file size or quality. There are some Emacs versions around not supporting PNG; the proper way to deal with that is to complain to your Emacs provider. Short of that, checking out PNM or JPEG formats might be a good way to find out whether the lack of PNG format support might be the only problem with your Emacs.

B.2.4 For which OS does preview work? ​

It is known to work under the X Window System for Linux and for several flavors of Unix: we have reports for HP and Solaris.

There are several versions of Emacs around for macOS, and preview-latex is working with them, too.

With Windows, both native Emacs and Cygwin Emacs should work. However, it is known that MiKTeX sometimes doesn’t work with preview-latex. In that case, use TeX Live instead.