otthorn
/
pdf-optimize
2
0
Fork 0
Code Issues 4 Pull Requests Projects 1 Releases Wiki Activity

Revert "On second though, shell script should not have .sh extension for simplicity"

Browse Source 
This reverts commit 249eb79fc9.
master
otthorn 3 years ago
parent 303f030351
commit 54f5237c74
2 changed files with 109 additions and 123 deletions
Show Stats Download Patch File Download Diff File

4
README.md
Unescape Escape View File

@ -7,9 +7,9 @@ You need to have ghoscript installed on your machine.
```
git clone https://gitea.auro.re/otthorn/pdf-optimize
cd pdf-optimize
chmod +x pdf-optimize
chmod +x pdf-optimize.sh
sudo mkdir -p /opt/bin/
sudo cp pdf-optimize /opt/bin/
sudo cp pdf-optimize.sh /opt/bin/pdf-optimize
```
Don't forget to add `/opt/bin` to your `PATH`.

228
pdf-optimize
Unescape Escape View File

@ -17,146 +17,132 @@
function usage
{
echo "usage: pdf-optimize [options] input.pdf"
echo " ";
echo " -a | --archive : archive mode (PDF/A)";
echo " -c | --compatibility : compability more with PDF 1.4";
echo " -h | --help : print this message";
echo " -k | --quality : choose quality profile from:
* 1 HIGH QUALITY [default]
* 2 LOW QUALITY
* 3 AGGRESSIVE
* 4 VERY AGGRESIVE";
echo " -o | --output : output filename";
echo " -q | --quiet : run quietly";
echo " -v | --verbose : run verbosly";
echo " -y | --yes-to-replace : yes to replace existing files";
echo " ";
echo "If no output path is specified, given input.pdf as input will output
echo "usage: pdf-optimize [options] input.pdf"
echo " ";
echo " -o | --output : output filename";
echo " -q | --quiet : run quietly";
echo " -v | --verbose : run verbosly";
echo " -y | --yes-to-replace : yes to replace existing files";
echo " -h | --help : print this message";
echo " ";
echo "If no output path is specified, given input.pdf as input will output
input_compressed.pdf"
}
function arg_parse
{
# if no argument is given print help
if [[ -z "$1" ]]; then
usage; exit;
fi
# positional arguments
args=()
while [ "$1" != "" ]; do
case "$1" in
-k | --quality ) quality="$2"; shift;;
-o | --output ) output_path="$2"; shift;;
-a | --archive ) archive=1;;
-c | --compatibility ) compatibility=1;;
-q | --quiet ) quiet=1;;
-v | --verbose ) verbose=1;;
-y | --yes-to-replace ) replace=1;;
-h | --help ) usage; exit;;
* ) args+=("$1")
esac
shift
done
# restore positional argument
set -- "${args[@]}"
# only the first one should be used
input_path="${args[0]}"
# add default output path if none is given
if [[ -z "$output_path" ]]; then
output_path="${input_path%.*}_compressed.pdf";
fi
# check if the output file already exists before writting to it
if [[ -f "$output_path" && "$replace" == 0 ]]; then
yes_or_no "$output_path already exists, do you want to replace it?" ||
exit 1;
fi
# check if the input file exists
if [[ ! -f "$input_path" ]]; then
echo "$input_path does not exist."
echo "Aborting";
exit 1;
fi
# if no argument is given print help
if [[ -z "$1" ]]; then
usage; exit;
fi
# positional arguments
args=()
while [ "$1" != "" ]; do
case "$1" in
-o | --output ) output_path="$2"; shift;;
-q | --quiet ) quiet=1;;
-v | --verbose ) verbose=1;;
-y | --yes-to-replace ) replace=1;;
-h | --help ) usage; exit;;
* ) args+=("$1")
esac
shift
done
# restore positional argument
set -- "${args[@]}"
# only the first one should be used
input_path="${args[0]}"
# add default output path if none is given
if [[ -z "$output_path" ]]; then
output_path="${input_path%.*}_compressed.pdf";
fi
# check if the output file already exists before writting to it
if [[ -f "$output_path" && "$replace" == 0 ]]; then
yes_or_no "$output_path already exists, do you want to replace it?" ||
exit 1;
fi
# check if the input file exists
if [[ ! -f "$input_path" ]]; then
echo "$input_path does not exist."
echo "Aborting";
exit 1;
fi
}
function yes_or_no
{
read -p "$* [y/N]: " ans
case "$ans" in
[yY] | [yY]es ) return 0;;
* ) echo "Aborting"; return 1;;
esac
read -p "$* [y/N]: " ans
case "$ans" in
[yY] | [yY]es ) return 0;;
* ) echo "Aborting"; return 1;;
esac
}
function run
{
arg_parse "$@";
# print general information
if [[ "$quiet" != 1 ]]; then
echo "Compressing from ${bold}$input_path${normal} into \
arg_parse "$@";
# print general information
if [[ "$quiet" != 1 ]]; then
echo "Compressing from ${bold}$input_path${normal} into \
${bold}$output_path${normal}."
fi
# define the base command
base_command="
gs -sDEVICE=pdfwrite \
-dPDFSETTINGS=/prepress \
-dNOPAUSE \
-dBATCH ";
# add compatibilty
if [[ "$compatibility" == 1 ]]; then
base_command+="-dCompatibilityLevel=1.4 ";
fi
# ask ghostsript to be quiet
if [[ "$verbose" == 1 ]]; then
base_command+="-dQUIET ";
fi
# add archive mode option
if [[ "$archive" == 1 ]]; then
base_command+="-dPDFA=2 -dPDFACompatibilityPolicy=1 "
fi
# add input and ouput paths
base_command+="-sOutputFile=$output_path \
$input_path"
# run command
echo $base_command;
#eval $base_command;
# catching errors
if [[ "$?" != 0 ]]; then
echo "Something went wrong with ghostscript.";
echo "Aborting.";
exit 1;
fi
# compute the compresion rate
if [[ "$quiet" != 1 ]]; then
#compute_compression;
fi
fi
# run the compression using ghostscript
if [[ "$verbose" != 1 ]]; then
ghostscript -sDEVICE=pdfwrite \
-dCompatibilityLevel=1.4 \
-dPDFSETTINGS=/prepress \
-dNOPAUSE \
-dQUIET \
-dBATCH \
-sOutputFile=$output_path \
$input_path
else
echo "input_path=$input_path";
echo "output_path=$output_path";
echo "quiet=$quiet";
echo "verbose=$verbose";
echo "replace=$replace";
echo " ";
ghostscript -sDEVICE=pdfwrite \
-dCompatibilityLevel=1.4 \
-dPDFSETTINGS=/prepress \
-dNOPAUSE \
-dBATCH \
-sOutputFile=$output_path \
$input_path
fi
# catching errors
if [[ "$?" != 0 ]]; then
echo "Something went wrong with ghostscript.";
echo "Aborting.";
exit 1;
fi
# compute the compresion rate
if [[ "$quiet" != 1 ]]; then
compute_compression;
fi
}
function compute_compression
{
input_size=`du "$input_path" | cut -f1`
output_size=`du "$output_path" | cut -f1`
percentage=`echo "scale=1;$output_size / $input_size * 100" | bc -l`
input_size_h=`du -h "$input_path" | cut -f1`
output_size_h=`du -h "$output_path" | cut -f1`
input_size=`du "$input_path" | cut -f1`
output_size=`du "$output_path" | cut -f1`
percentage=`echo "scale=1;$output_size / $input_size * 100" | bc -l`
input_size_h=`du -h "$input_path" | cut -f1`
output_size_h=`du -h "$output_path" | cut -f1`
echo "Size reduced from ${bold}$input_size_h${normal} to \
echo "Size reduced from ${bold}$input_size_h${normal} to \
${bold}$output_size_h${normal} [$percentage %]"
}

Write Preview
Loading…
Cancel
Save