Text Extraction
back_of_the_book_index	Create a sorted list of all words in the document along with the page numbers where the words occur.
concordance	Create a sorted list of unique words in a document along with counts.
glyphinfo	Simple PDF glyph dumper based on PDFlib TET.
text_extractor	PDF text extractor based on PDFlib TET.
text_from_annotations	Extract text from annotations with PDFlib TET and the pCOS interface.