More documentation
After the installation, documentation in the form of an info manual will be available. You can access it with the standalone info reader with
info preview-latexor by pressing C-h i d m preview-latex RET in Emacs. Once preview-latex is activated, you can instead use C-c C-p TAB (or the menu entry ‘Preview/Read documentation’).
Depending on your installation, a printable manual may also be available in the form of preview-latex.pdf.
Detailed documentation for the LaTeX style used for extracting the preview images is placed in preview.pdf in a suitable directory during installation; on typical TeX Live-based systems,
texdoc previewwill display it.