Convert all PDF files in a directory (and all directories within) to text

all_PDF_to_text.sh

# making sure that names with spaces won't be a problem
IFS=$'\n';

# head to remove the last 2 lines (one blank and one summary) and tail to remove the first line (always a dot) of tree output
# TODO: what about *.PDF?
for i in $(tree . -f -P "*.pdf" -i | head -n -2 | tail -n +2);
  # echo the relative file path
  do echo -n "${i}:   ";
  # if it is a file (and not a directory), perform the conversion
  [ -f ${i} ] && echo PDF && pdftotext "${i}" "${i}.txt";
done