[Tex/LaTex] remove space between paper title and abstract in AAAI

formattingspacingtitles

I want to remove the space between the title and abstract (marked as red box in the following pic) to save some space for my paper, I've seen some similar questions and people suggest using /vspace, I wonder is there a cleaner solution to this?enter image description here

and here is what I've got so far

\documentclass[letterpaper]{article}
\usepackage{aaai}
\usepackage{times}
\usepackage{helvet}
\usepackage{courier}
\frenchspacing
\setlength{\pdfpagewidth}{8.5in}
\setlength{\pdfpageheight}{11in}
\pdfinfo{
/Title (Insert Your Title Here)
/Author (Put All Your Authors Here, Separated by Commas)}
\setcounter{secnumdepth}{0}  
 \begin{document}
\title{Formatting Instructions for Authors Using \LaTeX{}}
\maketitle
\begin{abstract}
\begin{quote}
AAAI creates ...
\end{quote}
\end{abstract}

\noindent Congratulations...
\vfill
\break

\section{Copyright}
All papers submitted for publicatio

\end{document}

Best Answer

Looking into the aaai.sty file will learn that the area is controlled by titlebox whose default value is 2.25in. Therefore, use a less value in the preamble should remove the space, displayed below

\setlength\titlebox{1in}

enter image description here

Code

\documentclass[letterpaper]{article}
\usepackage{aaai}
\usepackage{times}
\usepackage{helvet}
\usepackage{courier}
\frenchspacing
\setlength{\pdfpagewidth}{8.5in}
\setlength{\pdfpageheight}{11in}
\pdfinfo{
/Title (Insert Your Title Here)
/Author (Put All Your Authors Here, Separated by Commas)}
\setcounter{secnumdepth}{0}  
\setlength\titlebox{1in}           % default=2.25in
 \begin{document}
\title{Formatting Instructions for Authors Using \LaTeX{}}
\maketitle
\begin{abstract}
\begin{quote}
AAAI creates ...
\end{quote}
\end{abstract}

\noindent Congratulations...
\vfill
\break

\section{Copyright}
All papers submitted for publicatio

\end{document}
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