LaTeX Writing Tips
Split the files into abstract,body, and appendix, and import them by \input{1_body}
For the submission of highlited PDF, you can use the snippets shown below:
code:revision-and-higlighting.tex.text
% === Revision highlighting ===
\definecolor{highlightyellow}{RGB}{255,255,120}
\newif\ifrevision
\revisionfalse
\ifrevision
\sethlcolor{highlightyellow}
\newcommand{\revadd}1{\hl{#1}} \else
\newcommand{\revadd}1{#1} \fi
and you can switch highlighted and normal versions by toggling betwen \revisiontrue and \revisionfalse