\documentclass[12pt]{report}
\usepackage{longtable}
\usepackage[bookmarks=false]{hyperref}

\begin{document}

\setlength{\pdfpageheight}{600mm}

\begin{longtable}{cc}
\multicolumn{2}{l}{Title: } \\
Text in C column \footnote{a} and \footnote{b} & Text in C column
\footnote{c} and \footnote{d}.\\
\end{longtable}

\begin{longtable}{p{.5\linewidth}}
Text\footnote{x} and \footnote{y}\\
\end{longtable}

\end{document}