From 73a45bca95916fcd280f8166f7ce09cc3b2d2a44 Mon Sep 17 00:00:00 2001 From: Yigit Sever Date: Mon, 13 Dec 2021 11:07:45 +0300 Subject: shrinkpdf: tracking --- .local/bin/shrinkpdf | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100755 .local/bin/shrinkpdf (limited to '.local/bin') diff --git a/.local/bin/shrinkpdf b/.local/bin/shrinkpdf new file mode 100755 index 0000000..b9d1f19 --- /dev/null +++ b/.local/bin/shrinkpdf @@ -0,0 +1,101 @@ +#!/bin/sh + +# http://www.alfredklomp.com/programming/shrinkpdf +# Licensed under the 3-clause BSD license: +# +# Copyright (c) 2014-2019, Alfred Klomp +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# 1. Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# 3. Neither the name of the copyright holder nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +# +# Modified by Vivek Gite to suit my needs +# +shrink () +{ + gs \ + -q -dNOPAUSE -dBATCH -dSAFER \ + -sDEVICE=pdfwrite \ + -dCompatibilityLevel=1.3 \ + -dPDFSETTINGS=/screen \ + -dEmbedAllFonts=true \ + -dSubsetFonts=true \ + -dAutoRotatePages=/None \ + -dColorImageDownsampleType=/Bicubic \ + -dColorImageResolution=$3 \ + -dGrayImageDownsampleType=/Bicubic \ + -dGrayImageResolution=$3 \ + -dMonoImageDownsampleType=/Subsample \ + -dMonoImageResolution=$3 \ + -sOutputFile="$2" \ + "$1" +} + +check_smaller () +{ + # If $1 and $2 are regular files, we can compare file sizes to + # see if we succeeded in shrinking. If not, we copy $1 over $2: + if [ ! -f "$1" -o ! -f "$2" ]; then + return 0; + fi + ISIZE="$(echo $(wc -c "$1") | cut -f1 -d\ )" + OSIZE="$(echo $(wc -c "$2") | cut -f1 -d\ )" + if [ "$ISIZE" -lt "$OSIZE" ]; then + echo "Input smaller than output, doing straight copy" >&2 + cp "$1" "$2" + fi +} + +usage () +{ + echo "Reduces PDF filesize by lossy recompressing with Ghostscript." + echo "Not guaranteed to succeed, but usually works." + echo " Usage: $1 infile [outfile] [resolution_in_dpi]" +} + +IFILE="$1" + +# Need an input file: +if [ -z "$IFILE" ]; then + usage "$0" + exit 1 +fi + +# Output filename defaults to "-" (stdout) unless given: +if [ ! -z "$2" ]; then + OFILE="$2" +else + OFILE="-" +fi + +# Output resolution defaults to 72 unless given: +if [ ! -z "$3" ]; then + res="$3" +else + res="90" +fi + +shrink "$IFILE" "$OFILE" "$res" || exit $? + +check_smaller "$IFILE" "$OFILE" -- cgit v1.2.3-70-g09d2