JPEG to PDF Conversion

jpeg2pdf.sh

# MIT License

# Copyright (c) 2021 Lei Mao <https://leimao.github.io/>

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# Usage
# bash jpeg2pdf.sh jpeg_dir output.pdf

dir=$1
output_file=$2

args=""

for file in `find ${dir} -name "*.JPG" -o -name "*.JPEG" -o -name "*.jpg" -o -name "*.jpeg" -type f`;
do
  args="${args} (${file}) viewJPEG showpage"
done

gs \
    -q \
    -dNOSAFER \
    -sPAPERSIZE=letter \
    -dNOPAUSE \
    -dBATCH \
    -sDEVICE=pdfwrite \
    -sOutputFile=${output_file} \
    viewjpeg.ps \
    -c \
    ${args}