15_subject_index.tex

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\usepackage{setspace}
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\usepackage{geometry}
\geometry{a4paper, portrait, left=30mm, right=15mm, top=20mm, bottom=20mm, bindingoffset=0mm}
\usepackage[english,russian]{babel}
\usepackage[export]{adjustbox}
\usepackage{xcolor}
\usepackage{titlesec}
\titleformat{\chapter}[block]{\large\bfseries\filcenter}{}{1em}{}
\titlespacing*{\chapter}{0pt}{0.0ex}{3.0ex}
\usepackage{indentfirst}
\usepackage{fancyhdr}
\fancyhf{}
\fancyfoot[C]{\large\thepage}
\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}
\clearpage
\setcounter{page}{3}


\begin{document}

\chapter{\textsc{Предметный указатель}}

\thispagestyle{fancy}

\large{Здесь какой-то текст!}

\end{document}