How to Adjust the Kerning Between the Letters in a Title (Is It Possible with PdfLatex?) [duplicate]

Question

Consider the code

\documentclass{book}
\usepackage{scalerel} % For Vertical Stretch of Letters
\usepackage{scalefnt}
\usepackage{pgothic}

\begin{document}
\thispagestyle{empty}
\vskip 35pt
\begin{center}
\begin{Huge}
\begin{pgothfamily}
{\vstretch{1.45}{\textbf{\scalefont{1.15}{Would Like to Adju{s}t the Spacing}}}} \vspace*{10pt} {\vstretch{1.45}{\textbf{\scalefont{1.15}{Between the Letters}}}}
\end{pgothfamily}
\end{Huge}
\end{center}
\end{document}

which produces the title

QUESTION: How may I adjust (increase in this case) the spacing between the letters in such a title? Is it possible using Pdflatex? If so, how? If not, how may this be done with Xelatex?

Thank you.

Answer 1

I would use a different approach...a token cycle. Here, each character is individually scaled (using \scalebox{1.15}[1.6675]{...}) and set bold, followed by a kern of \mygap. Likewise, each space is augmented by a 2\mygap kern and allowed to break a line.

This aproach will preclude hyphenation, but in a title, that may be preferred.

\documentclass{book}
\usepackage{scalerel} % For Vertical Stretch of Letters
\usepackage{scalefnt}
\usepackage{pgothic}
\usepackage{tokcycle,graphicx}
\def\mygap{3pt}
\Characterdirective{\addcytoks{\scalebox{1.15}[1.6675]{\bfseries#1}\kern
  \mygap}}
\Spacedirective{\addcytoks{#1\kern\mygap\kern\mygap\allowbreak}}
\begin{document}
\thispagestyle{empty}
\vskip 35pt
\begin{center}
\begingroup\Huge
\begin{pgothfamily}
\tokencyclexpress
Would Like to Adju{s}t the Spacing Between the Letters
\endtokencyclexpress
\end{pgothfamily}
\endgroup
\end{center}
\end{document}