Jesus in my place

\documentclass{article}\usepackage[margin=0in,paperheight=8in, paperwidth=4.3in]{geometry}\usepackage{amsmath}\usepackage{algorithm}\usepackage[noend]{algpseudocode}\usepackage{setspace}\usepack

#!/bin/bashfor file in ./*.pdfdo echo "$file" gs -o black+white.pdf -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sColorConversionStrategy=Gray -sColorConversionStrategyForImages=Gray -sProcessColo

gs -q -dNOPAUSE -dBATCH -dPDFSETTINGS=/prepress -sDEVICE=pdfwrite -sOutputFile=output.pdf  input.pdf