Set paper size to A5

Question

I want to use this template: https://www.overleaf.com/latex/templates/climate-policy-initiative-report-template/kjfjzrcjgtqg#.W4VSO-hKhPY

However, I would like to set the paper size to A5. I've tried a few things, but the cover loses all formatting and I can not fix it.

Do you have any tips?

Answer 1

Add a5paper to documentclass options, and replace letterpaper with a5paper:

\documentclass[10pt,a5paper]{article}
\usepackage{graphicx,amssymb, amstext, amsmath, epstopdf, booktabs, verbatim, gensymb, geometry, appendix, natbib, lmodern}
\geometry{a5paper}