jpg2pdf.sh

#!/bin/bash

# Converts a given input file into a PDF document

# Check if the input argument is provided
if [ -z "$1" ]; then
  echo "Usage: $0 <input_file.jpeg>"
  exit 1
fi

# Get the input file name
input_file="$1"

# Check if the input file exists
if [ ! -f "$input_file" ]; then
  echo "Error: File '$input_file' not found."
  exit 1
fi

# Check if the input file is a valid JPEG
file_type=$(file --mime-type -b "$input_file")
if [ "$file_type" != "image/jpeg" ]; then
  echo "Error: File '$input_file' is not a valid JPEG file."
  exit 1
fi

# Extract the base name (without extension)
base_name="${input_file%.*}"

# Set the output file name
output_file="${base_name}.pdf"

# Convert JPEG to PDF using Ghostscript
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile="$output_file" "$input_file"

# Check if the conversion was successful
if [ $? -eq 0 ]; then
  echo "Conversion completed: ${output_file}"
else
  echo "Error: Ghostscript failed to convert '$input_file' to PDF."
  exit 1
fi