combine.sh

#!/usr/bin/env bash

# Loop through all week* directories
for dir in week*/; do
  # Extract week number from directory name
  week_num=$(echo "$dir" | grep -o '[0-9]\+')

  # Enter directory
  cd "$dir"

  # For each PDF in current directory
  for pdf in *.pdf; do
    # Skip if no PDFs found
    [ -f "$pdf" ] || continue
    
    # Get total page count
    pages=$(pdftk "$pdf" dump_data | grep "NumberOfPages" | awk '{print $2}')
    
    # Calculate range to keep (skip first 3 and last 3)
    start=4
    end=$((pages - 3))
    
    # Only process if enough pages exist
    if [ $end -gt $start ]; then
      pdftk "$pdf" cat $start-$end output "stripped_$pdf"
      rm "$pdf"
      mv "stripped_$pdf" "$pdf"
    fi
  done

  # Run combine-pdfs command
  combine-pdfs

  # Rename combined.pdf to week*.pdf
  mv combined.pdf "week${week_num}.pdf"

  # Move back to parent directory
  cd ..

  # Move the week*.pdf to current directory
  mv "${dir}week${week_num}.pdf" .
done