Re: making a pdf file smaller the debian way....

["John A. Sullivan III" <jsullivan@opensourcedevel.com>]

On Mon, 2011-01-03 at 20:57 -0600, John Hasler wrote:
> John A. Sullivan III writes:
> > Does anyone know how to change the behavior of gs, Konqueror, KDE,
> > dcop, or anything else to ensure the file icon does not appear until
> > the reduction is complete?
> 
> Have gs write to a hidden temporary file.  Rename it when it's done.
> Arrange to remove the temporary if gs exits abnormally (you need to add
> error-handling anyway).
> -- 
> John Hasler
> 
> 
Oops - needed to added quotes around the DIR variable in case of spaces
in the directory names.  Here's what we have now:

#!/bin/bash
OFILE=""
OK=true
FILES="\"$(echo "${1}" | sed 's/ \//\" \"\//g')\""
DIR="$(echo ${FILES} | sed 's/\"\([^\"]*\)\".*/\1/')"
DIR="${DIR%/*}/"
EXT=""
ret=0
while ${OK}
do
	OFILE="$(kdialog --title "Enter New Reduced PDF File Name"
--getsavefilename "${DIR}")"
	if [ $? -ne 0 ];then
		exit 4
	fi
	EXT="${OFILE: -4:4}"
	if [ "${EXT}" != ".pdf" -a "${EXT}" != ".PDF" ];then
		OFILE="${OFILE}.pdf"
	fi
	if [ -f "${OFILE}" ];then
		kdialog --title "Reduce PDF File" --warningyesno "The file ${OFILE}
already exists.\nShall I overwrite it?"
		if [ $? -ne 0 ];then
			continue
		fi
	fi
	OK=false
done
FNAME="${OFILE##*/}"
DNAME="${OFILE%/*}"
kdialog --title "Reduce PDF File" --msgbox "PDF reduction can take
several minutes.\nYou will be notified via popup when the process is
complete.\nThank you." &
eval gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen
-dNOPAUSE -dQUIET -dBATCH -sOutputFile=\"${HOME}/tmp/${FNAME}\" ${FILES}
ret=$?
if [ $ret -eq 0 ];then
	mv "${HOME}/tmp/${FNAME}" "${OFILE}"
	ret=$?
fi
if [ $ret -ne 0 ];then
	rm -f "${HOME}/tmp/${FNAME}"
	kdialog --title "Reduce PDF File" --error "PDF Reduction of ${OFILE}
failed."
	exit 5
fi
kdialog --title "Reduce PDF File" --msgbox "PDF Reduction Completed for:
\n${OFILE}"