[Tex/LaTex] moderncv – modify size of blank spaces

Question

I'm trying to find a way to modify the moderncv LaTeX "library" (dk if library is the right word).
As shown on the picture below, I want the space 1 & 2 to be reduced by half.

I'm new in LaTeX, it's awesome btw, sorry if this is a stupid question.

Answer 1

The answer depends on the style used. Assuming the casual style, you can redefine \makecvtitle in the following way (modified lines are signaled with % NEW; feel free to change the lengths used according to your needs):

\documentclass{moderncv}
\moderncvstyle{casual}
\moderncvcolor{blue}

\firstname{John}
\familyname{Doe}
\photo{ctanlion}

\makeatletter
\renewcommand*{\makecvtitle}{%
  \recomputecvlengths%
  \vspace*{-3em} % NEW
  \makecvfooter%
  \newbox{\makecvtitlepicturebox}%
  \savebox{\makecvtitlepicturebox}{%
    \ifthenelse{\isundefined{\@photo}}%
      {}%
      {%
       \setlength\fboxrule{\@photoframewidth}%
       \ifdim\@photoframewidth=0pt%
         \setlength{\fboxsep}{0pt}\fi%
       {\color{color1}\framebox{\includegraphics[width=\@photowidth]{\@photo}}}}}%
  \usebox{\makecvtitlepicturebox}%
  % name
  \@initializelength{\makecvtitlepicturewidth}%
  \settowidth{\makecvtitlepicturewidth}{\usebox{\makecvtitlepicturebox}}%
  \parbox[b]{\textwidth-\makecvtitlepicturewidth}{%
    \raggedleft\namefont{\color{color2!50}\@firstname} {\color{color2}\@familyname}}\\[-.35em]% alternate design: \MakeLowercase and no space
  {\color{color2!50}\rule{\textwidth}{.25ex}}%
  % optional title
  \ifthenelse{\equal{\@title}{}}{}{\\[1.25em]\null\hfill\titlestyle{\@title}}\\[0em]% NEW original 2.5em
  \ifthenelse{\isundefined{\@quote}}%
    {}%
    {{\null\hfill\begin{minipage}{\quotewidth}\centering\quotestyle{\@quote}\end{minipage}\hfill\null\\[2.5em]}}%
  \par}% to avoid weird spacing bug at the first section if no blank line is left after \maketitle
\makeatother
\begin{document}

\makecvtitle
\section{Test Section}

\end{document}