pdf2pdf

gistfile1.txt

#!/bin/sh
# $Id: ps2pdfwr,v 1.9 2002/02/21 21:49:28 giles Exp $
# Convert PostScript to PDF without specifying CompatibilityLevel.



OPTIONS=""
QUALITY="ebook"
while true
do
	case "$1" in
		-q*)
			# see https://www.ghostscript.com/doc/current/VectorDevices.htm#PDFWRITE
			q=$1
			if [ "x$q" = 'x-qscreen' -o  "x$q" = 'x-q1' ]; then
				QUALITY="screen"
				# these are not on by default for low quality; wont increase file size, but will increasy quality
				OPTIONS="-dColorImageDownsampleType=/Bicubic $OPTOINS"
				OPTIONS="-dGrayImageDownsampleType=/Bicubic $OPTOINS"
			elif [ "x$q" = 'x-qebook'  -o  "x$q" = 'x-q2' ]; then
				# these are not on by default for low quality; wont increase file size, but will increasy quality
				QUALITY="ebook"
				OPTIONS="-dColorImageDownsampleType=/Bicubic $OPTOINS"
			elif [ "x$q" = 'x-qprinter'  -o  "x$q" = 'x-q3' ]; then
				# these are not on by default for low quality; wont increase file size, but will increasy quality
				QUALITY="printer"
			elif [ "x$q" = 'x-qprepress'  -o  "x$q" = 'x-q4' ]; then
				QUALITY="prepress"
			else
				echo "Invalid value for -q (quality).  Allowed values are:" 1>&2
				echo "  1 or screen   : 72dpi, lowest quality"              1>&2
				echo "  2 or ebook    : 150dpi, medium quality"             1>&2
				echo "  3 or printer  : 300dpi, high quality"               1>&2
				echo "  4 or prepress : 300dpi, very high quality"          1>&2
				exit 1
			fi
			;;

		-?*) OPTIONS="$OPTIONS $1" ;;
		*)  break ;;
	esac
	shift
done

OPTIONS="-dPDFSETTINGS=/$QUALITY $OPTIONS"

if [ $# -lt 1 -o $# -gt 2 ]; then
	echo "Usage: `basename $0` [-q{book|ebook|printer|prepress}] [options...] <input.{ps,eps,pdf}> {output.pdf|-}" 1>&2
	exit 1
fi

infile="$1";

if [ $# -eq 1 ]
then
	outfile=-
else
	outfile="$2"
fi

# We have to include the options twice because -I only takes effect if it
# appears before other options.
#exec gs $OPTIONS -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite "-sOutputFile=$outfile" $OPTIONS -c .setpdfwrite -f "$infile"
#exec gs $OPTIONS -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite "-sOutputFile=$outfile" $OPTIONS -c .setpdfwrite -f "$infile"
exec gs $OPTIONS -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dSAFER "-sOutputFile=$outfile" "$infile"