Splits a given a multi-page PDF document info multiple single-page files

pdfsplit.sh

#!/bin/bash
# pdfsplit.sh [input-file.pdf]
#
# Example: pdfsplit.sh input.pdf
#
# written by: ChatGPT under supervision of knee-cola

# Check if input PDF file is provided
if [ -z "$1" ]; then
  echo "Usage: $0 <input-pdf-file>"
  exit 1
fi

# Input PDF file
input_pdf="$1"

# Extract the base name without extension
base_name=$(basename "$input_pdf" .pdf)

# Get the total number of pages in the PDF
num_pages=$(pdfinfo "$input_pdf" | grep "Pages" | awk '{print $2}')

echo "Splitting PDF: $input_pdf"

# Split the PDF into individual pages
for ((i=1; i<=num_pages; i++)); do
  output_pdf="${base_name}_page_$i.pdf"
  gs -sDEVICE=pdfwrite -q -dNOPAUSE -dBATCH -dSAFER -dFirstPage=$i -dLastPage=$i -sOutputFile="$output_pdf" "$input_pdf"
  echo " $output_pdf"
done

echo "PDF splitting complete. Total pages: $num_pages"